a unit of an air force consisting usu of between 10 and 18 aircraft
a unit of cavalry or of an armoured regiment, usu consisting of three or more troops
a variable naval unit consisting of a number of warships on a particular operation
a unit of an air force consisting usu of between 10 and 18 aircraft
[Italian squadrone, orig a group of soldiers drawn up in a square, from squadra: see squad]