<P> Every night, at least two recruits from the platoon must be awake at any given time, patrolling their barracks area, watching for fires, cleaning the barracks and watching for recruits attempting to leave the barracks area . They wake the next pair of recruits at the end of their one - hour shift . This duty is called fire guard . </P> <P> Fire guard stems back to the days of wooden barracks and wood - burning stoves . The fire guard would watch the stoves to make sure that the barracks would not catch fire . Since open flames are not generally used to heat sleeping areas any longer, present - day fire guard during Basic Training is more an exercise in discipline than a practical necessity, although if the weather gets cold enough, some groups conducting overnight outdoor training will still use a kerosene "pot bellied" stove which must be watched to prevent accidental fires . </P> <P> Charge of quarters, commonly called CQ, functions in a somewhat similar manner . CQ shifts rotate throughout the entire company, with just two recruits from the company staying awake per shift . The actual charge of quarters is the drill sergeant and the pair of recruits staying awake are the "runners", meaning that they perform tasks for the CQ . They perform some of the same duties as the fire guard shift . Only the CQ on duty is permitted to open the barracks doors and the runners must alert the CQ if someone else attempts to enter or leave the barracks . </P> <P> For many hands - on instructional sessions, recruits are transported to other locations on - post that specialize in the given subject . For instance, a class on the use of the Claymore anti-personnel land mine is given at a location where a field is already set up with the appropriate props for the simulation, including fake claymores that recruits can practice on . Classes are also given in the use of the AT4 shoulder - fired anti-tank missile launcher . For this class, recruits are brought to a mock battlefield riddled with decommissioned tanks and other vehicles . Each recruit fires a trainer AT4 weapon, loaded with tracer ammunition, at various targets on the battlefield . For weaponry training that involves only the use of fake weapons, one real demonstration of the actual weapon is usually performed . For example, at claymore training one real claymore may be rigged and remotely detonated; and at AT4 training one recruit (usually the one with the highest rifle qualification score) is chosen to fire a live AT4 . </P>

How many army basic training bases are there