the armies of many European states (See the Flight of the Wild Geese). Infantry Column - This formation was typically used while marching, although with sufficient will and mass it was effective at breaking through line formations, albeit with heavy casualties. Line - A simple two- or three-rank deep line formation allowed most muskets to be brought to bear and was the most commonly used battle formation. Often the first rank would kneel after firing to allow the second rank to fire. Skirmishers - Skirmishers were not a common infantry unit until late in the 18th century. Light infantry would advance and be the first to fire to draw the enemy to attack, while also probing the flanks. In later eras, sharpshooters would not only target common soldiers, but also officers so that the men were without leadership. Square - This formation was used against cavalry. Bayonets would be fixed, the first line would kneel with their muskets angled upward (much like a pike.) The second and third lines would fire at the cavalry when it came close. This formation was very ineffective when faced with combined cavalry and infantry, or artillery fire in the case of plain squares. Cavalry The rise of gunpowder reduced the importance of the once dominant heavy cavalry, but it remained effective in a new role into the 19th century. The cavalry, along with the infantry, became more professional in this period but it retained its greater social and military prestige than the infantry. Light cavalry was introduced for skirmishing and scouting because of its advantage in speed and mobility. The new types of cavalry units introduced in this period were the dragoons or mounted infantry. Dragoons were intended to travel on horseback but fight on foot and were armed with carbines and pistols. Even orthodox cavalry carried firearms, especially the pistol, which they used in a tactic known as the caracole. Cavalry charges using swords on undisciplined infantry could still be quite decisive, but a frontal charge against well-ordered musketeers and pikemen was all but futile. Cavalry units, from the 16th century on, were more likely to charge other cavalry on the flanks of an infantry formation and try to work their way behind the enemy infantry. When they achieved this and pursued a fleeing enemy, heavy cavalry could still destroy an enemy army. Only a specialised cavalry units like winged hussars armed with