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Prussian general and military theorist (1780–1831)
"Clausewitz" redirects here. For the part of defence of Berlin during World War II, see Operation Clausewitz. For the Paradox computer strategy games engine, see Clausewitz Engine.
Carl von Clausewitz
Carl von Clausewitz in Prussian service; portrait by Wilhelm Wach, early 1830s
Clausewitz stressed the multiplex interaction of diverse factors in war, noting how unexpected developments unfolding under the "fog of war" (i.e., in the face of incomplete, dubious, and often erroneous information and great fear, doubt, and excitement) call for rapid decisions by alert commanders. He saw history as a vital check on erudite abstractions that did not accord with experience. In contrast to the early work of Antoine-Henri Jomini, he argued that war could not be quantified or reduced to mapwork, geometry, and graphs. Clausewitz had many aphorisms, of which one of the most famous is, "War is the continuation of policy with other means."[2]:87
Name
Clausewitz's Christian names are sometimes given in non-German sources as "Karl", "Carl Philipp Gottlieb", or "Carl Maria". He spelled his own given name with a "C" in order to identify with the classical Western tradition; writers who use "Karl" are often seeking to emphasize their German (rather than European) identity. "Carl Philipp Gottfried" appears on Clausewitz's tombstone.[3] Nonetheless, sources such as military historian Peter Paret and Encyclopædia Britannica continue to use Gottlieb instead of Gottfried.[4]
Life and military career
Clausewitz was born on 1 July 1780 in Burg bei Magdeburg in the Prussian Duchy of Magdeburg as the fourth and youngest son of a family that made claims to a noble status which Carl accepted. Clausewitz's family claimed descent from the Barons of Clausewitz in Upper Silesia, though scholars question the connection.[5] His grandfather, the son of a Lutheran pastor, had been a professor of theology. Clausewitz's father, once a lieutenant in the army of Frederick the Great, King of Prussia, held a minor post in the Prussian internal-revenue service. Clausewitz entered the Prussian military service at the age of twelve as a lance corporal, eventually attaining the rank of major general.[6]
Clausewitz served during the Jena Campaign as aide-de-camp to Prince August. At the Battle of Jena-Auerstedt on 14 October 1806—when Napoleon invaded Prussia and defeated the Prussian-Saxon army commanded by Karl Wilhelm Ferdinand, Duke of Brunswick—he was captured, one of the 25,000 prisoners taken that day as the Prussian army disintegrated. He was 26. Clausewitz was held prisoner with his prince in France from 1807 to 1808. Returning to Prussia, he assisted in the reform of the Prussian army and state.[6] Johann Gottlieb Fichte wrote On Machiavelli, as an Author, and Passages from His Writings in June 1807. ("Über Machiavell, als Schriftsteller, und Stellen aus seinen Schriften" ). Carl Clausewitz wrote an interesting and anonymous Letter to Fichte (1809) about his book on Machiavelli. The letter was published in Fichte's Verstreute kleine Schriften 157–166. For an English translation of the letter see Carl von Clausewitz Historical and Political Writings Edited by: Peter Paret and D. Moran (1992).
Marie von Clausewitz (née, Countess von Brühl)
On 10 December 1810, he married the socially prominent CountessMarie von Brühl, whom he had first met in 1803. She was a member of the noble German Brühl family originating in Thuringia. The couple moved in the highest circles, socialising with Berlin's political, literary, and intellectual élite. Marie was well-educated and politically well-connected—she played an important role in her husband's career progress and intellectual evolution.[7] She also edited, published, and introduced his collected works.[8]
In 1815 the Russian-German Legion became integrated into the Prussian Army and Clausewitz re-entered Prussian service as a colonel.[9] He was soon appointed chief-of-staff of Johann von Thielmann's III Corps. In that capacity he served at the Battle of Ligny and the Battle of Wavre during the Waterloo campaign in 1815. An army led personally by Napoleon defeated the Prussians at Ligny (south of Mont-Saint-Jean and the village of Waterloo) on 16 June 1815, but they withdrew in good order. Napoleon's failure to destroy the Prussian forces led to his defeat a few days later at the Battle of Waterloo (18 June 1815), when the Prussian forces arrived on his right flank late in the afternoon to support the Anglo-Dutch-Belgian forces pressing his front. Napoleon had convinced his troops that the field grey uniforms were those of Marshal Grouchy's grenadiers. Clausewitz's unit fought heavily outnumbered at Wavre (18–19 June 1815), preventing large reinforcements from reaching Napoleon at Waterloo. After the war, Clausewitz served as the director of the Kriegsakademie, where he served until 1830. In that year he returned to active duty with the army. Soon afterward, the outbreak of several revolutions around Europe and a crisis in Poland appeared to presage another major European war. Clausewitz was appointed chief of staff of the only army Prussia was able to mobilise in this emergency, which was sent to the Polish border. Its commander, Gneisenau, died of cholera (August 1831), and Clausewitz took command of the Prussian army's efforts to construct a cordon sanitaire to contain the great cholera outbreak (the first time cholera had appeared in modern heartland Europe, causing a continent-wide panic). Clausewitz himself died of the same disease shortly afterwards, on 16 November 1831.[6]
His widow edited, published, and wrote the introduction to his magnum opus on the philosophy of war in 1832. (He had started working on the text in 1816 but had not completed it.)[10] She wrote the preface for On War and had published most of his collected works by 1835.[8] She died in January 1836.
Theory of war
Clausewitz was a professional combat soldier and a staff officer[11] who was involved in numerous military campaigns, but he is famous primarily as a military theorist interested in the examination of war, utilising the campaigns of Frederick the Great and Napoleon as frames of reference for his work.[12] He wrote a careful, systematic, philosophical examination of war in all its aspects. The result was his principal book, On War, a major work on the philosophy of war. It was unfinished when Clausewitz died and contains material written at different stages in his intellectual evolution, producing some significant contradictions between different sections. The sequence and precise character of that evolution is a source of much debate as to the exact meaning behind some seemingly contradictory observations in discussions pertinent to the tactical, operational and strategic levels of war, for example (though many of these apparent contradictions are simply the result of his dialectical method). Clausewitz constantly sought to revise the text, particularly between 1827 and his departure on his last field assignments, to include more material on "people's war" and forms of war other than high-intensity warfare between states, but relatively little of this material was included in the book.[10] Soldiers before this time had written treatises on various military subjects, but none had undertaken a great philosophical examination of war on the scale of those written by Clausewitz and Leo Tolstoy, both of whom were inspired by the events of the Napoleonic Era.
Clausewitz's work is still studied today, demonstrating its continued relevance. More than sixteen major English-language books that focused specifically on his work were published between 2005 and 2014, whereas his 19th-century rival Jomini has faded from influence. The historian Lynn Montross said that this outcome "may be explained by the fact that Jomini produced a system of war, Clausewitz a philosophy. The one has been outdated by new weapons, the other still influences the strategy behind those weapons."[13] Jomini did not attempt to define war but Clausewitz did, providing (and dialectically comparing) a number of definitions. The first is his dialectical thesis: "War is thus an act of force to compel our enemy to do our will." The second, often treated as Clausewitz's 'bottom line,' is in fact merely his dialectical antithesis: "War is merely the continuation of policy with other means." The synthesis of his dialectical examination of the nature of war is his famous "trinity," saying that war is "a fascinating trinity—composed of primordial violence, hatred, and enmity, which are to be regarded as a blind natural force; the play of chance and probability, within which the creative spirit is free to roam; and its element of subordination, as an instrument of policy, which makes it subject to pure reason."[14][improper synthesis?] Christopher Bassford says the best shorthand for Clausewitz's trinity should be something like "violent emotion/chance/rational calculation." However, it is frequently presented as "people/army/government," a misunderstanding based on a later paragraph in the same section. This misrepresentation was popularised by U.S. Army Colonel Harry Summers' Vietnam-era interpretation,[15] facilitated by weaknesses in the 1976 Howard/Paret translation.[16]
The degree to which Clausewitz managed to revise his manuscript to reflect that synthesis is the subject of much debate. His final reference to war and Politik, however, goes beyond his widely quoted antithesis: "War is simply the continuation of political intercourse with the addition of other means. We deliberately use the phrase 'with the addition of other means' because we also want to make it clear that war in itself does not suspend political intercourse or change it into something entirely different. In essentials that intercourse continues, irrespective of the means it employs. The main lines along which military events progress, and to which they are restricted, are political lines that continue throughout the war into the subsequent peace."[17]
A prince or general who knows exactly how to organise his war according to his object and means, who does neither too little nor too much, gives by that the greatest proof of his genius. But the effects of this talent are exhibited not so much by the invention of new modes of action, which might strike the eye immediately, as in the successful final result of the whole. It is the exact fulfilment of silent suppositions, it is the noiseless harmony of the whole action which we should admire, and which only makes itself known in the total result.
—Clausewitz, On War, Book III, Chapter 1[18]:Vol. I pgs. 85–86
Clausewitz introduced systematic philosophical contemplation into Western military thinking, with powerful implications not only for historical and analytical writing but also for practical policy, military instruction, and operational planning. He relied on his own experiences, contemporary writings about Napoleon, and on deep historical research. His historiographical approach is evident in his first extended study, written when he was 25, of the Thirty Years' War. In On War, Clausewitz sees all wars as the sum of decisions, actions, and reactions in an uncertain and dangerous context, and also as a socio-political phenomenon. He also stressed the complex nature of war, which encompasses both the socio-political and the operational and stresses the primacy of state policy. (One should be careful not to limit his observations on war to war between states, however, as he certainly discusses other kinds of protagonists).[19]:viii Clausewitz, according to Azar Gat, expressed in the field of military theory the main themes of the Romantic reaction against the worldview of the Enlightenment, rejecting universal principles and stressing historical diversity and the forces of the human spirit. This explains the strength and value of many of his arguments, derived from this great cultural movement, but also his often harsh rhetoric against his predecessors.[20][21]
The word "strategy" had only recently come into usage in modern Europe, and Clausewitz's definition is quite narrow: "the use of engagements for the object of war" (which many today would call "the operational level" of war). Clausewitz conceived of war as a political, social, and military phenomenon which might—depending on circumstances—involve the entire population of a political entity at war. In any case, Clausewitz saw military force as an instrument that states and other political actors use to pursue the ends of their policy, in a dialectic between opposing wills, each with the aim of imposing his policies and will upon his enemy.[22]
Clausewitz's emphasis on the inherent superiority of the defense suggests that habitual aggressors are likely to end up as failures. The inherent superiority of the defense obviously does not mean that the defender will always win, however: there are other asymmetries to be considered. He was interested in co-operation between the regular army and militia or partisan forces, or citizen soldiers, as one possible—sometimes the only—method of defense. In the circumstances of the Wars of the French Revolution and those with Napoleon, which were energised by a rising spirit of nationalism, he emphasised the need for states to involve their entire populations in the conduct of war. This point is especially important, as these wars demonstrated that such energies could be of decisive importance and for a time led to a democratisation of the armed forces much as universal suffrage democratised politics.[23]
While Clausewitz was intensely aware of the value of intelligence at all levels, he was also very skeptical of the accuracy of much military intelligence: "Many intelligence reports in war are contradictory; even more are false, and most are uncertain.... In short, most intelligence is false."[18]:Vol. I p. 38 This circumstance is generally described as part of the fog of war. Such skeptical comments apply only to intelligence at the tactical and operational levels; at the strategic and political levels he constantly stressed the requirement for the best possible understanding of what today would be called strategic and political intelligence. His conclusions were influenced by his experiences in the Prussian Army, which was often in an intelligence fog due partly to the superior abilities of Napoleon's system but even more simply to the nature of war. Clausewitz acknowledges that friction creates enormous difficulties for the realization of any plan, and the fog of war hinders commanders from knowing what is happening. It is precisely in the context of this challenge that he develops the concept of military genius (German: der kriegerische Genius), evidenced above all in the execution of operations. 'Military genius' is not simply a matter of intellect, but a combination of qualities of intellect, experience, personality, and temperament (and there are many possible such combinations) that create a very highly developed mental aptitude for the waging of war.[24]
"friction" – the disparity between the ideal performance of units, organisations or systems and their actual performance in real-world scenarios (Book I, Chapter VII)
Clausewitz used a dialectical method to construct his argument, leading to frequent misinterpretation of his ideas. British military theorist B. H. Liddell Hart contends that the enthusiastic acceptance by the Prussian military establishment—especially Moltke the Elder, a former student of Clausewitz[27]—of what they believed to be Clausewitz's ideas, and the subsequent widespread adoption of the Prussian military system worldwide, had a deleterious effect on military theory and practice, due to their egregious misinterpretation of his ideas:
As so often happens, Clausewitz's disciples carried his teaching to an extreme which their master had not intended.... [Clausewitz's] theory of war was expounded in a way too abstract and involved for ordinary soldier-minds, essentially concrete, to follow the course of his argument—which often turned back from the direction in which it was apparently leading. Impressed yet befogged, they grasped at his vivid leading phrases, seeing only their surface meaning, and missing the deeper current of his thought.[28]
One of the main sources of confusion about Clausewitz's approach lies in his dialectical method of presentation. For example, Clausewitz's famous line that "War is the continuation of policy with other means," ("Der Krieg ist eine bloße Fortsetzung der Politik mit anderen Mitteln") while accurate as far as it goes, was not intended as a statement of fact. It is the antithesis in a dialectical argument whose thesis is the point—made earlier in the analysis—that "war is nothing but a duel [or wrestling match, the extended metaphor in which that discussion was embedded] on a larger scale." His synthesis, which resolves the deficiencies of these two bold statements, says that war is neither "nothing but" an act of brute force nor "merely" a rational act of politics or policy. This synthesis lies in his "fascinating trinity" [wunderliche Dreifaltigkeit]: a dynamic, inherently unstable interaction of the forces of violent emotion, chance, and rational calculation.[6]
Another example of this confusion is the idea that Clausewitz was a proponent of total war as used in the Third Reich's propaganda in the 1940s. In fact, Clausewitz never used the term "total war": rather, he discussed "absolute war," a concept which evolved into the much more abstract notion of "ideal war" discussed at the very beginning of Vom Kriege—the purely logical result of the forces underlying a "pure," Platonic "ideal" of war.[29] In what he called a "logical fantasy," war cannot be waged in a limited way: the rules of competition will force participants to use all means at their disposal to achieve victory. But in the real world, he said, such rigid logic is unrealistic and dangerous. As a practical matter, the military objectives in real war that support political objectives generally fall into two broad types: limited aims or the effective "disarming" of the enemy "to render [him] politically helpless or militarily impotent. Thus, the complete defeat of the enemy may not be necessary, desirable, or even possible.[30]
According to Azar Gat, the opposing interpretations of Clausewitz are rooted in Clausewitz’s own conceptual journey.[20][21] The centerpiece of Clausewitz’s theory of war throughout his life was his concept of all-out fighting and energetic conduct leading to the great battle of annihilation. He believed such conduct expressed the very “nature”, or “lasting spirit” of war. Accordingly, Clausewitz disparaged the significance of the maneuver, surprise, and cunning in war, as distracting from the centrality of battle,[31] and argued that defense was legitimate only if and as long as one was weaker than the enemy.[32] Nevertheless, in the last years of his life, after the first six out of the eight books of On War had already been drafted, Clausewitz came to recognize that this concept was not universal and did not even apply to the Napoleonic Wars, the supreme model of his theory of war. This was demonstrated by the Spanish and Russian campaigns and by guerrilla warfare, in all of which battle was systematically avoided. Consequently, from 1827 on, Clausewitz recognized the legitimacy of limited war and explained it by the influence of politics that harnessed the unlimited nature of war to serve its objectives. Clausewitz died in 1831 before he completed the revision he planned along these lines. He incorporated his new ideas only into the end of Book VI, Book VIII and the beginning of Book I of On War. As a result, when published, On War encompassed both his old and new ideas, at odds with each other.
Thus, against common interpretations of On War, Gat points out that Clausewitz’s transformed views regarding the relationship between politics and war and the admission of limited war into his theory constituted a U-turn against his own life-long fundamental view of the nature of war. Gat further argues the readers’ miscomprehension of the theory in On War as complete and dialectical, rather than a draft undergoing a radical change of mind, has thus generated a range of reactions. People of each age have found in On War the Clausewitz who suited their own views on war and its conduct. Between 1870 and 1914, he was celebrated mainly for his insistence on the clash of forces and the decisive battle, and his emphasis on moral forces. By contrast, after 1945, during the nuclear age, his reputation has reached a second pinnacle for his later acceptance of the primacy of politics and the concept of limited war.
Referring to much of the current interpretation of On War as the Emperor’s New Clothes syndrome, Gat argues that instead of critically addressing the puzzling contradictions in On War, Clausewitz has been set in stone and could not be wrong.
In modern times the reconstruction of Clausewitzian theory has been a matter of much dispute. One analysis was that of Panagiotis Kondylis, a Greek writer and philosopher, who opposed the interpretations of Raymond Aron in Penser la Guerre, Clausewitz, and other liberal writers. According to Aron, Clausewitz was one of the first writers to condemn the militarism of the Prussian general staff and its war-proneness, based on Clausewitz's argument that "war is a continuation of policy by other means." In Theory of War, Kondylis claims that this is inconsistent with Clausewitzian thought. He claims that Clausewitz was morally indifferent to war (though this probably reflects a lack of familiarity with personal letters from Clausewitz, which demonstrate an acute awareness of war's tragic aspects) and that his advice regarding politics' dominance over the conduct of war has nothing to do with pacifist ideas.
Other notable writers who have studied Clausewitz's texts and translated them into English are historians Peter Paret of the Institute for Advanced Study and Sir Michael Howard. Howard and Paret edited the most widely used edition of On War (Princeton University Press, 1976/1984) and have produced comparative studies of Clausewitz and other theorists, such as Tolstoy. Bernard Brodie's A Guide to the Reading of "On War," in the 1976 Princeton translation, expressed his interpretations of the Prussian's theories and provided students with an influential synopsis of this vital work. The 1873 translation by Colonel James John Graham was heavily—and controversially—edited by the philosopher, musician, and game theoristAnatol Rapoport.
The British military historian John Keegan attacked Clausewitz's theory in his book A History of Warfare.[33] Keegan argued that Clausewitz assumed the existence of states, yet 'war antedates the state, diplomacy and strategy by many millennia.'
Influence
Clausewitz died without completing Vom Kriege, but despite this his ideas have been widely influential in military theory and have had a strong influence on German military thought specifically. Later Prussian and German generals, such as Helmuth Graf von Moltke, were clearly influenced by Clausewitz: Moltke's widely quoted statement that "No operational plan extends with high certainty beyond the first encounter with the main enemy force" is a classic reflection of Clausewitz's insistence on the roles of chance, friction, "fog," uncertainty, and interactivity in war.[34]:20–21
Clausewitz's influence spread to British thinking as well, though at first more as a historian and analyst than as a theorist.[34] See for example Wellington's extended essay discussing Clausewitz's study of the Campaign of 1815—Wellington's only serious written discussion of the battle, which was widely discussed in 19th-century Britain. Clausewitz's broader thinking came to the fore following Britain's military embarrassments in the Boer War (1899–1902). One example of a heavy Clausewitzian influence in that era is Spenser Wilkinson, journalist, the first Chichele Professor of Military History at Oxford University, and perhaps the most prominent military analyst in Britain from c.1885 until well into the interwar period. Another is naval historian Julian Corbett (1854–1922), whose work reflected a deep if idiosyncratic adherence to Clausewitz's concepts and frequently an emphasis on Clausewitz's ideas about 'limited objectives' and the inherent strengths of the defensive form of war. Corbett's practical strategic views were often in prominent public conflict with Wilkinson's—see, for example, Wilkinson's article "Strategy at Sea", The Morning Post, 12 February 1912. Following the First World War, however, the influential British military commentator B. H. Liddell Hart in the 1920s erroneously attributed to him the doctrine of "total war" that during the First World War had been embraced by many European general staffs and emulated by the British. More recent scholars typically see that war as so confused in terms of political rationale that it in fact contradicts much of On War.[35] That view assumes, however, a set of values as to what constitutes "rational" political objectives—in this case, values not shaped by the fervid Social Darwinism that was rife in 1914 Europe. One of the most influential British Clausewitzians today is Colin S. Gray; historian Hew Strachan (like Wilkinson also the Chichele Professor of Military History at Oxford University, since 2001) has been an energetic proponent of the study of Clausewitz, but his own views on Clausewitz's ideas are somewhat ambivalent.
With some interesting exceptions (e.g., John McAuley Palmer, Robert M. Johnston, Hoffman Nickerson), Clausewitz had little influence on American military thought before 1945 other than via British writers, though Generals Eisenhower and Patton were avid readers of English translations. He did influence Karl Marx, Friedrich Engels, Vladimir Lenin, Leon Trotsky,[36]:233–260Võ Nguyên Giáp,[37]Ferdinand Foch,[38] and Mao Zedong, and thus the Communist Soviet and Chinese traditions, as Lenin emphasized the inevitability of wars among capitalist states in the age of imperialism and presented the armed struggle of the working class as the only path toward the eventual elimination of war.[39] Because Lenin was an admirer of Clausewitz and called him "one of the great military writers," his influence on the Red Army was immense.[40] The Russian historian A.N. Mertsalov commented that "It was an irony of fate that the view in the USSR was that it was Lenin who shaped the attitude towards Clausewitz, and that Lenin's dictum that war is a continuation of politics is taken from the work of this [allegedly] anti-humanist anti-revolutionary."[40] The American mathematician Anatol Rapoport wrote in 1968 that Clausewitz as interpreted by Lenin formed the basis of all Soviet military thinking since 1917, and quoted the remarks by MarshalV.D. Sokolovsky:
In describing the essence of war, Marxism-Leninism takes as its point of departure the premise that war is not an aim in itself, but rather a tool of politics. In his remarks on Clausewitz's On War, Lenin stressed that "Politics is the reason, and war is only the tool, not the other way around. Consequently, it remains only to subordinate the military point of view to the political."[41]:37
Henry A. Kissinger, however, described Lenin's approach as being that politics is a continuation of war by other means, thus turning Clausewitz's argument "on its head."[34]:198
Rapoport argued that:
As for Lenin's approval of Clausewitz, it probably stems from his obsession with the struggle for power. The whole Marxist conception of history is that of successive struggles for power, primarily between social classes. This was constantly applied by Lenin in a variety of contexts. Thus the entire history of philosophy appears in Lenin's writings as a vast struggle between "idealism" and "materialism." The fate of the socialist movement was to be decided by a struggle between the revolutionists and the reformers. Clausewitz's acceptance of the struggle for power as the essence of international politics must have impressed Lenin as starkly realistic.[41]:37–38
Clausewitz directly influenced Mao Zedong, who read On War in 1938 and organised a seminar on Clausewitz for the Party leadership in Yan'an. Thus the "Clausewitzian" content in many of Mao's writings is not merely a regurgitation of Lenin but reflects Mao's own study.[42] The idea that war involves inherent "friction" that distorts, to a greater or lesser degree, all prior arrangements, has become common currency in fields such as business strategy and sport. The phrase fog of war derives from Clausewitz's stress on how confused warfare can seem while one is immersed within it.[43] The term center of gravity, used in a military context derives from Clausewitz's usage, which he took from Newtonian mechanics. In U.S. military doctrine, "center of gravity" refers to the basis of an opponent's power at the operational, strategic, or political level, though this is only one aspect of Clausewitz's use of the term.[44]
Late 20th and early 21st century
The deterrence strategy of the United States in the 1950s was closely inspired by President Dwight Eisenhower's reading of Clausewitz as a young officer in the 1920s. Eisenhower was greatly impressed by Clausewitz's example of a theoretical, idealized "absolute war" in Vom Kriege as a way of demonstrating how absurd it would be to attempt such a strategy in practice. For Eisenhower, the age of nuclear weapons had made what was for Clausewitz in the early-19th century only a theoretical vision an all too real possibility in the mid-20th century. From Eisenhower's viewpoint, the best deterrent to war was to show the world just how appalling and horrific a nuclear "absolute war" would be if it should ever occur, hence a series of much-publicized nuclear tests in the Pacific, giving first priority in the defense budget to nuclear weapons and to their delivery-systems over conventional weapons, and making repeated statements in public that the United States was able and willing at all times to use nuclear weapons. In this way, through the massive retaliation doctrine and the closely related foreign-policy concept of brinkmanship, Eisenhower hoped to hold out a credible vision of Clausewitzian nuclear "absolute war" in order to deter the Soviet Union and/or China from ever risking a war or even conditions that might lead to a war with the United States.[45]
...Philanthropists may easily imagine there is a skillful method of disarming and overcoming an enemy without causing great bloodshed, and that this is the proper tendency of the art of War. However plausible this may appear, still it is an error which must be extirpated; for in such dangerous things as war, the errors which proceed from a spirit of benevolence are just the worst. As the use of physical power to the utmost extent by no means excludes the co-operation of the intelligence, it follows that he who uses force unsparingly, without reference to the quantity of bloodshed, must obtain a superiority if his adversary does not act likewise. By such means the former dictates the law to the latter, and both proceed to extremities, to which the only limitations are those imposed by the amount of counteracting force on each side.
—Clausewitz, On War, Book I, Chapter 1[18]:Vol. I,pp. 1–2
After 1970, some theorists claimed that nuclear proliferation made Clausewitzian concepts obsolete after the 20th-century period in which they dominated the world.[46] John E. Sheppard Jr., argues that by developing nuclear weapons, state-based conventional armies simultaneously both perfected their original purpose, to destroy a mirror image of themselves, and made themselves obsolete. No two powers have used nuclear weapons against each other, instead using diplomacy, conventional means, or proxy wars to settle disputes. If such a conflict did occur, presumably both combatants would be annihilated. Heavily influenced by the war in Vietnam and by antipathy to American strategist Henry Kissinger, the American biologist, musician, and game-theorist Anatol Rapoport argued in 1968 that a Clausewitzian view of war was not only obsolete in the age of nuclear weapons, but also highly dangerous as it promoted a "zero-sum paradigm" to international relations and a "dissolution of rationality" amongst decision-makers.[41]:73–77
The end of the 20th century and the beginning of the 21st century have seen many instances of state armies attempting to suppress insurgencies and terrorism, and engaging in other forms of asymmetrical warfare. Clausewitz did not focus solely on wars between countries with well-defined armies. The era of the French Revolution and Napoleon was full of revolutions, rebellions, and violence by "non-state actors" - witness the wars in the French Vendée and in Spain. Clausewitz wrote a series of "Lectures on Small War" and studied the rebellion in the Vendée (1793–1796) and the Tyrolean uprising of 1809. In his famous "Bekenntnisdenkschrift" of 1812 he called for a "Spanish war in Germany" and laid out a comprehensive guerrilla strategy to be waged against Napoleon. In On War he included a famous chapter on "The People in Arms".[47]
One prominent critic of Clausewitz is the Israeli military historian Martin van Creveld. In his 1991 book The Transformation of War,[48] Creveld argued that Clausewitz's famous "Trinity" of people, army, and government was an obsolete socio-political construct based on the state, which was rapidly passing from the scene as the key player in war, and that he (Creveld) had constructed a new "non-trinitarian" model for modern warfare. Creveld's work has had great influence. Daniel Moran replied, 'The most egregious misrepresentation of Clausewitz's famous metaphor must be that of Martin van Creveld, who has declared Clausewitz to be an apostle of Trinitarian War, by which he means, incomprehensibly, a war of 'state against state and army against army,' from which the influence of the people is entirely excluded."[49] Christopher Bassford went further, noting that one need only read the paragraph in which Clausewitz defined his Trinity to see
"that the words 'people,' 'army,' and 'government' appear nowhere at all in the list of the Trinity's components.... Creveld's and Keegan's assault on Clausewitz's Trinity is not only a classic 'blow into the air,' i.e., an assault on a position Clausewitz doesn't occupy. It is also a pointless attack on a concept that is quite useful in its own right. In any case, their failure to read the actual wording of the theory they so vociferously attack, and to grasp its deep relevance to the phenomena they describe, is hard to credit."[26]
Some have gone further and suggested that Clausewitz's best-known aphorism, that war is a continuation of policy with other means, is not only irrelevant today but also inapplicable historically.[50] For an opposing view see the sixteen essays presented in Clausewitz in the Twenty-First Century edited by Hew Strachan and Andreas Herberg-Rothe.[51]
In military academies, schools, and universities worldwide, Clausewitz's Vom Kriege is often (usually in translation) mandatory reading.[52]
August Otto Rühle von Lilienstern – Prussian officer from whom Clausewitz allegedly took, without acknowledgement, several important ideas (including that about war as pursuing political aims) made famous in On War. However, substantial basis for assuming common influences exist, most prominently Scharnhorst, who was Clausewitz's "second father" and professional mentor. This provokes skepticism of the claim the ideas were plagiarized from Lilienstern.
↑ In German personal names, von is a preposition which approximately means 'of' or 'from' and usually denotes some sort of nobility. While von (always lower case) is part of the family name or territorial designation, not a first or middle name, if the noble is referred to by their last name, use Schiller, Clausewitz or Goethe, not von Schiller, etc.
↑ "[T]he great uncertainty of all data in war is a peculiar difficulty, because all action must, to a certain extent, be planned in a mere twilight, which in addition not unfrequently—like the effect of a fog or moonshine—gives to things exaggerated dimensions and an unnatural appearance."[18]:Vol. I p. 54
↑ "As the centre of gravity is always situated where the greatest mass of matter is collected, and as a shock against the center of gravity of a body always produces the greatest effect, and further, as the most effective blow is struck with the center of gravity of the power used, so it is also in war. The armed forces of every belligerent, whether of a single state or of an alliance of states, have a certain unity, and in that way, connection; but where connection is there come in analogies of the center of gravity. There are, therefore, in these armed forces certain centers of gravity, the movement and direction of which decide upon other points, and these centers of gravity are situated where the greatest bodies of troops are assembled. But just as, in the world of inert matter, the action against the center of gravity has its measure and limits in the connection of the parts, so it is in war, and here as well as there the force exerted may easily be greater than the resistance requires, and then there is a blow in the air, a waste of force."[18]:Vol. II p. 180
↑ Bellinger, Vanya Eftimova. Marie von Clausewitz: The Woman Behind the Making of On War. New York/London: Oxford University Press, 2015. ISBN978-0-19-022543-8
↑ Beyerchen, Alan (11 November 2019). "Kluge and Clausewitz. Chance and Imagination in the Real World". In Langston, Richard; Adelson, Leslie A.; Jones, N.D.; Wilms, Leonie (eds.). The Poetic Power of Theory. Alexander Kluge-Jahrbuch 6 (2019). V&R Unipress. p.48. ISBN9783847010395. Retrieved 6 July 2024. [...] Clausewitz was a staff officer for nearly his entire field career, due to his excellent analytical abilities, and he was very often at the commander's side.
↑ Paret, Peter (2012). "Clausewitz and Schlieffen as Interpreters of Frederick the Great: Three Phases in the History of Grand Strategy". Journal of Military History. 76 (3): 837–845.
↑ Lynn Montross, War Through the Ages (2nd ed. 1946) p. 583.
↑ Carl von Clausewitz, On War, originally Vom Kriege (3 vols., Berlin: 1832–34). The edition cited here was edited by Michael Howard and Peter Paret, Princeton University Press, 1984, pp. 75, 87, 89, 605.
↑ Summers, Harry G., Jr. On Strategy: A Critical Analysis of the Vietnam War (Novato, CA: Presidio Press, 1982).
↑ Bassford, Christopher (2007). "The Primacy of Policy and the "Trinity" in Clausewitz's Mature Thought.". In Strachan, Hew; Herberg-Rothe, Andreas (eds.). Clausewitz in the Twenty-First Century: Proceedings of a March, 2005 conference at Oxford. Oxford University Press. pp.74–90.
↑ Paret, Clausewitz and the State: The Man, His Theories, and His Times
1 2 Gat, Azar (2001). A history of military thought: from the Enlightenment to the Cold War. Oxford; New York: Oxford University Press. ISBN978-0-19-924762-2.
1 2 Gat, Azar (2024). The Clausewitz myth: or the emperor's new clothes. Washington: John Hunt Publishing. ISBN978-1-80341-621-2.
↑ Heuser, Beatrice (2007). "Clausewitz' Ideas of Strategy and Victory". In Strachan, Hew; Herberg-Rothe, Andreas (eds.). Clausewitz in the 21st Century: Proceedings of a March, 2005 conference at Oxford. Oxford University Press. pp.132–163.
1 2 Mertsalov, A.N. "Jomini versus Clausewitz" pp. 11–19 from Russia War, Peace and Diplomacy edited by Mark and Ljubica Erickson, London: Weidenfeld & Nicolson, 2004 p. 16.
1 2 3 Rapoport, Anatol "Introduction" pp. 11–82 from On War, London: Penguin, 1968.
↑ Martin van Creveld, The Transformation of War: The Most Radical Reinterpretation of Armed Conflict Since Clausewitz (New York: The Free Press, 1991).
↑ Daniel Moran, "Clausewitz on Waterloo: Napoleon at Bay", in Carl von Clausewitz and Arthur Wellesley, 1st Duke of Wellington, On Waterloo: Clausewitz, Wellington, and the Campaign of 1815, ed./trans. Christopher Bassford, Daniel Moran, and Gregory W. Pedlow (Clausewitz.com, 2010), p. 242, n. 11.
↑ See for instance John Keegan, A History of Warfare (New York: Knopf, 1993), passim.
↑ Strachan, Hew; Herberg-Rothe, Andreas, eds. (2007). Clausewitz in the Twenty-First Century: Proceedings of a March, 2005 conference at Oxford. Oxford University Press.
↑ Giuseppe Caforio, Social sciences and the military: an interdisciplinary overview (2006) p. 221
↑ Compare: Coker, Christopher (15 May 2017). Rebooting Clausewitz: 'On War' in the Twenty-First Century. New York: Oxford University Press. p.xx. ISBN9780190862749. Retrieved 29 February 2024. Had [Clausewitz] lived in the twenty-first century he could have expected to [...] have seen his book go into several editions. Perhaps his work would be raided by editors in search of an endless series of quotes. Perhaps while browsing airport bookshops we would find books with titles such as Clausewitz's Six Leadership Lessons [...].
Cormier, Youri (2014). "Hegel and Clausewitz: Convergence on Method, Divergence on Ethics". The International History Review. 36 (3): 419–442. doi:10.1080/07075332.2013.859166. S2CID143665195.
Cormier, Youri. War As Paradox: Clausewitz & Hegel on Fighting Doctrines and Ethics, (Montreal & Kingston: McGill Queen's University Press, 2016) pp.183–232
Handel, Michael I. Masters of War: Classical Strategic Thought. (2001) 482 pages. Based on comparison of Clausewitz's On War with Sun Tzu's The Art of WarISBN0714681326OCLC318033033
Heuser, Beatrice (2010). "Small Wars in the Age of Clausewitz: The Watershed Between Partisan War and People's War". Journal of Strategic Studies. 33: 139–162. doi:10.1080/01402391003603623. S2CID154880399.
Sir Michael Howard, Clausewitz, 1983 [originally a volume in the Oxford University Press "Past Masters" series, reissued in 2000 as Clausewitz: A Very Short Introduction]. ISBN0-192-87608-2OCLC8709266
Bassford, Christopher (1994). "John Keegan and the Grand Tradition of Trashing Clausewitz: A Polemic". War in History. 1 (3): 319–336. doi:10.1177/096834459400100305. S2CID162660742.
Mertsalov, A.N. "Jomini versus Clausewitz" pp.11–19 from Russia War, Peace and Diplomacy edited by Mark and Ljubica Erickson, London: Weidenfeld & Nicolson, 2004, ISBN0-297-84913-1.
Peter Paret (2010). "Two Historians on Defeat in War and Its Causes". Historically Speaking. 11 (3): 2–8. doi:10.1353/hsp.0.0118. S2CID162357305.
Paret, Peter. Clausewitz and the State: The Man, His Theories, and His Times. Princeton: Princeton University Press, 1976.
Paret, Peter (2004). "From Ideal to Ambiguity: Johannes von Muller, Clausewitz, and the People in Arms". Journal of the History of Ideas. 65: 101–111. doi:10.1353/jhi.2004.0021. S2CID143173095.
Rogers, Clifford J. (2002). "Clausewitz, Genius, and the Rules". The Journal of Military History. 66 (4): 1167–1176. doi:10.2307/3093268. JSTOR3093268.
Rothfels, Hans "Clausewitz" pp.93–113 from The Makers of Modern Strategy edited by Edward Mead Earle, Gordon A. Craig & Felix Gilbert, Princeton, N.J.: Princeton University Press, 1943.
Strachan, Hew, and Andreas Herberg-Rothe, eds. Clausewitz in the Twenty-First Century (2007) excerpt and text search
Sumida, Jon Tetsuro (2001). "The Relationship of History and Theory in on War: The Clausewitzian Ideal and Its Implications". The Journal of Military History. 65 (2): 333–354. doi:10.2307/2677163. JSTOR2677163.
Sumida, Jon Tetsuro. Decoding Clausewitz: A New Approach to On War Lawrence, Kansas: University Press of Kansas, 2008. ISBN978-0700616169OCLC213765799
Wallach, Jehuda L.The Dogma of the Battle of Annihilation: The Theories of Clausewitz and Schlieffen and Their Impact on the German Conduct of Two World Wars. (1986).
Clausewitz, Carl von. On War, abridged version translated by Michael Howard and Peter Paret, edited with an introduction by Beatrice Heuser Oxford World's Classics (Oxford University Press, 2007) ISBN978-0-19-954002-0
Clausewitz, Carl von. Principles of War. Translated by Hans Gatske. The Military Service Publishing Company, 1942. Originally "Die wichtigsten Grundsätze des Kriegführens zur Ergänzung meines Unterrichts bei Sr. Königlichen Hoheit dem Kronprinzen" (written 1812).
Clausewitz, Karl von. On War. Trans. O.J. Matthijs Jolles. New York: Random House, 1943. Though not currently the standard translation, this is increasingly viewed by many Clausewitz scholars as the most precise and accurate English translation.
Clausewitz, Carl von (2018). Napoleon's 1796 Italian Campaign. Trans and ed. Nicholas Murray and Christopher Pringle. Lawrence, Kansas: University Press of Kansas. ISBN978-0-7006-2676-2
Clausewitz, Carl von (2020). Napoleon Absent, Coalition Ascendant: The 1799 Campaign in Italy and Switzerland, Volume 1. Trans and ed. Nicholas Murray and Christopher Pringle. Lawrence, Kansas: University Press of Kansas. ISBN978-0-7006-3025-7online review
Clausewitz, Carl von (2021). The Coalition Crumbles, Napoleon Returns: The 1799 Campaign in Italy and Switzerland, Volume 2. Trans and ed. Nicholas Murray and Christopher Pringle. Lawrence, Kansas: University Press of Kansas. ISBN978-0-7006-3034-9
Clausewitz, Carl von. The Campaign of 1812 in RussiaArchived 2020-01-13 at the Wayback Machine. Trans. anonymous [Wellington's friend Francis Egerton, later Lord Ellesmere], London: John Murray Publishers, 1843. Originally Carl von Clausewitz, Hinterlassene Werke des Generals Carl von Clausewitz über Krieg und Krieg führung, 10 vols., Berlin, 1832–37, "Der Feldzug von 1812 in Russland" in Vol. 7, Berlin, 1835.
Corn, Tony. "Clausewitz in Wonderland", Policy Review, September 2006. This is an article hostile to "Clausewitz and the Clausewitzians." See also reply by Clausewitz Homepage, "Clausewitz's self-appointed PR Flack."
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