A squadron is a small unit or formation of cavalry, aircraft (including balloons), or warships. Army and Marines A cavalry squadron (horse or armoured), typically consists of three to five troops. USA In the United States Army, a squadron is the Cavalry equivalent of an infantry battalion or artillery battalion; it's used for Armored Cavalry and Air Cavalry units. UK and Commonwealth In the British Army and many Commonwealth armies, it's the counterpart of an infantry company or artillery batter… (More on Squadron)