A natural border is a border between states or their subdivisions which is concomitant with natural formations such as rivers or mountain ranges. The "doctrine of natural boundaries" developed in Western culture in the 18th century being based upon the "natural" ideas of Jean-Jacques Rousseau and developing concepts of nationalism. [1] The similar concept in China developed earlier from natural zones of control. [2]
Natural borders have historically been strategically useful because they are easily defended. Natural borders remain meaningful in modern warfare even though military technology and engineering have somewhat reduced their strategic value.
Expanding until natural borders are reached, and maintaining those borders once conquered, have been a major policy goal for a number of states. For example, the Roman Republic, and later, the Roman Empire expanded continuously until it reached certain natural borders: first the Alps, later the Rhine river, the Danube river and the Sahara desert. From the Middle Ages onwards until the 19th century, France sought to expand its borders towards the Alps, the Pyrenees, and the Rhine River. [3]
Natural borders can be a source of territorial disputes when they shift. One such example is the Rio Grande, which defines part of the border between the United States and Mexico, whose movement has led to multiple conflicts.
Natural borders are not to be confused with landscape borders, which are also geographical features that demarcate political boundaries. Although landscape borders, like natural borders, also take forms of forests, water bodies, and mountains, they are manmade instead of natural. Installing a landscape border, usually motivated by demarcating treaty-designated political boundaries, goes against nature by modifying the borderland's natural geography. For one, China's Song Dynasty built an extensive defensive forest in its northern border to thwart the nomadic Khitan people. [4]
In Chapter IV of his 1916 book The New Europe: Essays in Reconstruction, British historian Arnold J. Toynbee criticized the concept of natural borders. [5] Specifically, Toynbee criticized this concept as providing a justification for launching additional wars so that countries can attain their natural borders. [5] Toynbee also pointed out how once a country attained one set of natural borders, it could subsequently aim to attain another, further set of natural borders; for instance, the German Empire set its western natural border at the Vosges Mountains in 1871 but during World War I, some Germans began to advocate for even more western natural borders—specifically ones that extend all of the way up to Calais and the English Channel—conveniently justifying the permanent German retention of those Belgian and French territories that Germany had just conquered during World War I. [5] As an alternative to the idea of natural borders, Toynbee proposes making free trade, partnership, and cooperation between various countries with interconnected economies considerably easier so that there would be less need for countries to expand even further—whether to their natural borders or otherwise. [5] In addition, Toynbee advocated making national borders based more on the principle of national self-determination—as in, based on which country the people in a particular area or territory actually wanted to live in. [5]
The Rhine is one of the major European rivers. The river begins in the Swiss canton of Graubünden in the southeastern Swiss Alps. It forms part of the Swiss-Liechtenstein, Swiss-Austrian, and Swiss-German borders. After that the Rhine defines much of the Franco-German border, after which it flows in a mostly northerly direction through the German Rhineland. Finally in Germany, the Rhine turns into a predominantly westerly direction and flows into the Netherlands where it eventually empties into the North Sea. It drains an area of 9,973 km2 and its name derives from the Celtic Rēnos. There are also two German states named after the river, North Rhine-Westphalia and Rhineland-Palatinate.
The geography of Switzerland features a mountainous and landlocked country located in Western and Central Europe. Switzerland's natural landscape is marked by its numerous lakes and mountains. It is surrounded by five countries: Austria and Liechtenstein to the east, France to the west, Italy to the south and Germany to the north. Switzerland has a maximum north–south length of 220 kilometres (140 mi) and an east–west length of about 350 kilometres (220 mi).
Arnold Joseph Toynbee was an English historian, a philosopher of history, an author of numerous books and a research professor of international history at the London School of Economics and King's College London. From 1918 to 1950, Toynbee was considered a leading specialist on international affairs; from 1929 to 1956 he was the Director of Studies at Chatham House, in which position he also produced 34 volumes of the Survey of International Affairs, a "bible" for international specialists in Britain.
Austria is a predominantly mountainous country in Central Europe, approximately between Germany, Italy and Hungary. It has a total area of 83,871 square kilometres (32,383 sq mi).
Abnoba is a name with theological and geographical meanings: It is the name of a Gaulish goddess who was worshiped in the Black Forest and surrounding areas. It is also the name of a mountain or mountain range.
The Jura Mountains are a sub-alpine mountain range a short distance north of the Western Alps and mainly demarcate a long part of the French–Swiss border. While the Jura range proper is located in France and Switzerland, the range continues as the Table Jura northeastwards through northern Switzerland and Germany.
The Bergisches Land is a low mountain range in the state of North Rhine-Westphalia, Germany, east of the Rhine and south of the Ruhr. The landscape is shaped by forests, meadows, rivers and creeks and contains over twenty artificial lakes. Wuppertal is the biggest town, while the southern part has economic and socio-cultural ties to Cologne. Wuppertal and the neighbouring cities of Remscheid and Solingen form the Bergisches Städtedreieck.
Borders are usually defined as geographical boundaries, imposed either by features such as oceans and terrain, or by political entities such as governments, sovereign states, federated states, and other subnational entities. Political borders can be established through warfare, colonization, or mutual agreements between the political entities that reside in those areas.
The Soviet Union incorporated an area of over 22,402,200 square kilometres (8,649,500 sq mi), covering approximately one-sixth of Earth's land surface. It spanned most of Eurasia. Its largest and most populous republic was the Russian SFSR which covered roughly three-quarters of the surface area of the union, including the complete territory of contemporary Russia.
Tourism in Albania has been a key element to the country's economic activity and is constantly developing. Albania is characterized by its rich archaeological and cultural heritage dating back to the classical period when Illyrians and Ancient Greeks inhabited the region. Over the course of history, the territory of Albania was occupied and populated by Romans, Byzantines, Venetians and Ottomans. Notably the country features unspoiled beaches, mountainous landscapes, traditional cuisine, archaeological artifacts, unique traditions, low prices and the wild atmosphere of the countryside.
The Alpine Rhine Valley is a glacial alpine valley, formed by the part of the Alpine Rhine between the confluence of the Anterior Rhine and Posterior Rhine at Reichenau and the Alpine Rhine's mouth at Lake Constance. It covers three countries and the full length of the Alpine Rhine is 93.5 km.
The Central Eastern Alps, also referred to as Austrian Central Alps or just Central Alps, comprise the main chain of the Eastern Alps in Austria and the adjacent regions of Switzerland, Liechtenstein, Italy and Slovenia. South them is the Southern Limestone Alps.
Europe is traditionally defined as one of seven continents. Physiographically, it is the northwestern peninsula of the larger landmass known as Eurasia ; Asia occupies the centre and east of this continuous landmass. Europe's eastern frontier is usually delineated by the Ural Mountains in Russia, which is the largest country by land area in the continent. The southeast boundary with Asia is not universally defined, but the modern definition is generally the Ural River or, less commonly, the Emba River. The boundary continues to the Caspian Sea, the crest of the Caucasus Mountains, and on to the Black Sea. The Bosporus, the Sea of Marmara, and the Dardanelles conclude the Asian boundary. The Mediterranean Sea to the south separates Europe from Africa. The western boundary is the Atlantic Ocean. Iceland is usually included in Europe because it is over twice as close to mainland Europe as mainland North America. There is ongoing debate on where the geographical centre of Europe falls.
The Swiss Plateau or Central Plateau is one of the three major landscapes in Switzerland, lying between the Jura Mountains and the Swiss Alps. It covers about 30% of the Swiss surface area, and is partly flat but mostly hilly. The average height is between 400 metres (1,300 ft) and 700 metres (2,300 ft) AMSL. It is by far the most densely populated region of Switzerland, the center of economy and important transportation.
The Eastern Alps are usually defined as the area east of a line from Lake Constance and the Alpine Rhine valley, up to the Splügen Pass at the Alpine divide, and down the Liro River to Lake Como in the south. The peaks and mountain passes are lower than the Western Alps, while the range itself is broader and less arched.
Southern Germany is a region of Germany that included the areas in which Upper German dialects are spoken, which includes the stem duchies of Bavaria and Swabia.
Carnia is a historical-geographic region in the northeastern Italian area of Friuli. Its 27 municipalities all belong to the province of Udine, which itself is part of the autonomous Friuli Venezia Giulia region.
Germany is a country in Central and Western Europe that stretches from the Alps, across the North European Plain to the North Sea and the Baltic Sea. It is the second-most populous country in Europe after Russia, and is seventh-largest country by area in the continent. The area of Germany ranked 63rd and covers 357,021 km2 (137,847 sq mi), consisting of 349,223 km2 (134,836 sq mi) of land and 7,798 km2 (3,011 sq mi) of waters, smaller than Japan but larger than Republic of the Congo.
This division of Germany into major natural regions takes account primarily of geomorphological, geological, hydrological, and pedological criteria in order to divide the country into large, physical units with a common geographical basis. Political boundaries play no part in this, apart from defining the national border.
The Italian geographic region, Italian physical region or Italian region is a geographical region of Southern Europe delimited to the north by the mountain chains of the Alps. This subregion is composed of a peninsular and continental part and an insular part. Located between the Balkan Peninsula and the Iberian Peninsula, it protrudes into the centre of the Mediterranean Sea and overlooks the Adriatic Sea, the Ionian Sea, the Ligurian Sea, the Sardinian Channel, the Sea of Corsica, the Sea of Sardinia, the Strait of Sicily, and the Tyrrhenian Sea.