Czechoslovak armies in exile were the military formations loyal to the Czechoslovak government-in-exile during the German occupation of Czechoslovakia and included: Poland Czechoslovak Legion (1939), unit operating in Poland in 1939 United Kingdom Czechoslovak 11th Infantry Battalion, unit operating under British command from 1940 to 1942 1st Czechoslovak Armoured Brigade, unit operating under British command from 1943 to 1945 Czechoslovak RAF squadrons (310, 311, 312, and 313 Squadrons) Soviet Union 1st Czechoslovak Army Corps in the USSR 1st Czechoslovak Mixed Air Division