The Free French fought Axis and Vichy regime troops and served on battlefronts everywhere from the Middle East to Indochina and North Africa. The Free French Navy operated as an auxiliary force to the Royal Navy and, in the North Atlantic, to the Royal Canadian Navy. Free French units also served in the Royal Air Force, Soviet Air Force, and British SAS, before larger commands were established directly under the control of the government-in-exile. By the end of 1940 Free France had around 30,000 soldiers by mid 1943 this had risen to around 100,000 soldiers.