FS meaning in Military and Defence ?

Execution by firing squad, in the past sometimes called fusillading (from the French fusil, rifle), is a method of capital punishment, particularly common in the military and in times of war. Execution by shooting is a fairly old practice. Some reasons for its use are that firearms are usually readily available and a gunshot to a vital organ, such as the brain or heart, most often will kill relatively quickly.

A firing squad is normally composed of several military personnel, all of whom are usually instructed to fire simultaneously, thus preventing both disruption of the process by one member and identification of the member who fired the lethal shot. To avoid disfigurement due to multiple shots to the head, the shooters are typically instructed to aim at the heart, sometimes aided by a paper or cloth target. The prisoner is typically blindfolded or hooded, as well as restrained, although in some cases prisoners have asked to be allowed to face the firing squad without their eyes covered. Media portrayals have frequently shown the condemned being offered a final cigarette as well. Executions can be carried out with the condemned either standing or sitting. There is a tradition in some jurisdictions that such executions are carried out at first light or at sunrise. This gave rise to the phrase "shot at dawn".

Execution by firing squad is distinct from other forms of execution by firearms, such as an execution by shooting to the back of the head or neck. However, the single shot by the squad's officer with a pistol (coup de grâce) is sometimes incorporated in a firing squad execution, particularly if the initial volley turns out not to be immediately fatal. Before the introduction of firearms, bows or crossbows were often used—Saint Sebastian is usually depicted as executed by a squad of Roman auxiliary archers in around AD 288; King Edmund the Martyr of East Anglia, by some accounts, was tied to a tree and executed by Viking archers on 20 November 869 or 870.