A crossfire (also known as interlocking fire) is a military term for the siting of weapons (often automatic weapons such as assault rifles or sub-machine guns) so that their arcs of fire overlap. [1] This tactic came to prominence in World War I.[ citation needed ]
Siting weapons this way is an example of the application of the defensive principle of mutual support. The advantage of siting weapons that mutually support one another is that it is difficult for an attacker to find a covered approach to any one defensive position. Use of armour, air support, indirect fire support, and stealth are tactics that may be used to assault a defensive position. However, when combined with land mines, snipers, barbed wire, and air cover, crossfire became a difficult tactic to counter in the early 20th century.[ citation needed ]
The concept of overlapping arcs of fire drove major developments in the use of cannon in early modern Europe. The star fort forced attackers approaching the walls into the overlapping enfilade of the protruding bastions; [2] attempts to achieve a similar effect through maneuver on the battlefield were limited by the weight and size of the artillery of the time. The earliest experiments in mobile artillery, such as the leather cannon, were generally flawed due to the limitations of the materials science of the period, but eventually gave rise to the regimental gun.
Perhaps the most famous example of crossfire tactics in early modern warfare occurred in the final stages of the First Battle of Breitenfeld. Swedish cavalry under Gustavus Adolphus outflanked and seized the artillery pieces of the Imperial army. As the battle had progressed, the Imperial guns were now well-positioned to fire upon the bulk of the Imperial army, and the crossfire of Swedish and captured cannon shattered the Imperial forces. [3]
The tactic of using overlapping arcs of fire came to prominence during World War I where it was a feature of trench warfare. Machine guns were placed in groups, called machine-gun nests, and they protected the front of the trenches. Many people died in futile attempts to charge across the no man's land where these crossfires were set up. After these attacks many bodies could be found in the no man's land. [4]
To be "caught in the crossfire" is an expression that often refers to unintended casualties (bystanders, etc.) who were killed or wounded by being exposed to the gunfire of a battle or gun fight, such as in a position to be hit by bullets of either side. The phrase has come to mean any injury, damage or harm (physical or otherwise) caused to a third party due to the action of belligerents (collateral damage).
A siege is a military blockade of a city, or fortress, with the intent of conquering by attrition, or by well-prepared assault. Siege warfare is a form of constant, low-intensity conflict characterized by one party holding a strong, static, defensive position. Consequently, an opportunity for negotiation between combatants is common, as proximity and fluctuating advantage can encourage diplomacy.
Combined arms is an approach to warfare that seeks to integrate different combat arms of a military to achieve mutually complementary effects—for example, using infantry and armour in an urban environment in which each supports the other.
A human wave attack, also known as a human sea attack, is an offensive infantry tactic in which an attacker conducts an unprotected frontal assault with densely concentrated infantry formations against the enemy line, intended to overrun and overwhelm the defenders by engaging in melee combat. The name refers to the concept of a coordinated mass of soldiers falling upon an enemy force and sweeping them away with sheer weight and momentum, like an ocean wave breaking on a beach.
Trench warfare is a type of land warfare using occupied lines largely comprising military trenches, in which combatants are well-protected from the enemy's small arms fire and are substantially sheltered from artillery. It became archetypically associated with World War I (1914–1918), when the Race to the Sea rapidly expanded trench use on the Western Front starting in September 1914.
A frontal assault is a military tactic which involves a direct, full-force attack on the front line of an enemy force, rather than to the flanks or rear of the enemy. It allows for a quick and decisive victory, but at the cost of subjecting the attackers to the maximum defensive power of the enemy; this can make frontal assaults costly even if successful, and often disastrously costly if unsuccessful. It may be used as a last resort when time, terrain, limited command control, or low troop quality do not allow for any battlefield flexibility. The risks of a frontal assault can be mitigated by the use of heavy supporting fire, diversionary attacks, the use of cover, or infiltration tactics.
Anti-tank warfare originated during World War I from the desire to develop technology and tactics to destroy tanks. After the Allies deployed the first tanks in 1916, the German Empire introduced the first anti-tank weapons. The first developed anti-tank weapon was a scaled-up bolt-action rifle, the Mauser 1918 T-Gewehr, that fired a 13.2 mm cartridge with a solid bullet that could penetrate the thin armor used by tanks at that time and destroy the engine or ricochet inside, killing occupants. Because tanks represent an enemy's strong force projection on land, military strategists have incorporated anti-tank warfare into the doctrine of nearly every combat service since. The most predominant anti-tank weapons at the start of World War II in 1939 included the tank-mounted gun, anti-tank guns and anti-tank grenades used by the infantry, and ground-attack aircraft.
Technology during World War I (1914–1918) reflected a trend toward industrialism and the application of mass-production methods to weapons and to the technology of warfare in general. This trend began at least fifty years prior to World War I during the American Civil War of 1861–1865, and continued through many smaller conflicts in which soldiers and strategists tested new weapons.
A charge is an offensive maneuver in battle in which combatants advance towards their enemy at their best speed in an attempt to engage in a decisive close combat. The charge is the dominant shock attack and has been the key tactic and decisive moment of many battles throughout history. Modern charges usually involve small groups of fireteams equipped with weapons with a high rate of fire and striking against individual defensive positions, instead of large groups of combatants charging another group or a fortified line.
In military science, suppressive fire is "fire that degrades the performance of an enemy force below the level needed to fulfill its mission". When used to protect exposed friendly troops advancing on the battlefield, it is commonly called covering fire. Suppression is usually only effective for the duration of the fire. It is one of three types of fire support, which is defined by NATO as "the application of fire, coordinated with the maneuver of forces, to destroy, neutralise or suppress the enemy".
In warfare, infiltration tactics involve small independent light infantry forces advancing into enemy rear areas, bypassing enemy frontline strongpoints, possibly isolating them for attack by follow-up troops with heavier weapons. Soldiers take the initiative to identify enemy weak points and choose their own routes, targets, moments and methods of attack; this requires a high degree of skill and training, and can be supplemented by special equipment and weaponry to give them more local combat options.
Stormtroopers were the only elite shock troops of the Imperial German Army that specialized in commando style raids, infiltrate the trenches and wipe out the enemy quickly, maneuver warfare, reconnaissance, and shock tactics. In the last years of World War I, Stoßtruppen were trained to use infiltration tactics – part of the Germans' improved method of attack on enemy trench warfare. The German Empire entered the war certain that the conflict would be won in the course of great military campaigns, thus relegating results obtained during individual clashes to the background; consequently the best officers, concentrated in the German General Staff, placed their attention on maneuver warfare and the rational exploitation of railways, rather than concentrating on the conduct of battles. This attitude made a direct contribution to operational victories of Germany in Russia, Romania, Serbia and Italy, but it resulted in failure in the West. Thus the German officers on the Western Front found themselves in need of resolving the static situation caused by trench warfare on the battlefield.
The hedgehog defence is a military tactic in which a defending force creates multiple mutually supporting strongpoints ("hedgehogs") in a defence in depth, designed to sap the strength and break the momentum of an attack. The hedgehogs are designed to be both strong in defence, and thus expensive for an attacker to assault, and capable of mounting counterattacks. The intention is that the attacker will instead bypass them. This will divide his front, expose his forward units to enfilading fire as they pass between hedgehogs followed by attack from the rear when they have passed them, and leave his rear echelons and lines of communication open to counterattack.
A pivot gun was a type of cannon mounted on a fixed central emplacement which permitted it to be moved through a wide horizontal arc. They were a common weapon aboard ships and in land fortifications for several centuries but became obsolete after the invention of gun turrets.
Infantry tactics are the combination of military concepts and methods used by infantry to achieve tactical objectives during combat. The role of the infantry on the battlefield is, typically, to close with and engage the enemy, and hold territorial objectives; infantry tactics are the means by which this is achieved. Infantry commonly makes up the largest proportion of an army's fighting strength, and consequently often suffers the heaviest casualties. Throughout history, infantrymen have sought to minimise their losses in both attack and defence through effective tactics.
A reverse slope defence is a military tactic where a defending force is positioned on the slope of an elevated terrain feature such as a hill, ridge, or mountain, on the side opposite from the attacking force. This tactic both hinders the attacker's ability to observe the defender's positions and reduces the effectiveness of the attacker's long-range weapons such as tanks and artillery.
Industrial warfare is a period in the history of warfare ranging roughly from the early 19th century and the start of the Industrial Revolution to the beginning of the Atomic Age, which saw the rise of nation-states, capable of creating and equipping large armies, navies, and air forces, through the process of industrialization.
The artillery of World War I, improved over that used in previous wars, influenced the tactics, operations, and strategies that were used by the belligerents. This led to trench warfare and encouraged efforts to break the resulting stalemate at the front. World War I raised artillery to a new level of importance on the battlefield.
In military usage, a barrage is massed sustained artillery fire (shelling) aimed at a series of points along a line. In addition to attacking any enemy in the kill zone, a barrage intends to suppress enemy movements and deny access across that line of barrage. The impact points along the line may be 20 to 30 yards apart, with the total line length of the barrage zone anything from a few hundred to several thousand yards long. Barrages can consist of multiple such lines, usually about 100 yards apart, with the barrage shifting from one line to the next over time, or several lines may be targeted simultaneously.
Marching fire, also known as walking fire, is a military tactic—a form of suppressive fire used during an infantry assault or combined arms assault. Advancing units fire their weapons without stopping to aim, in an attempt to pin down enemy defenders. Marching fire usually ends with an infantry charge to engage the enemy in close combat. The tactic requires ample ammunition and rapid-fire weapons. It differs from fire and movement in that the attacking force advances in unison rather than leapfrogging forward in alternating groups.