In 1944 RAF Commandos of the Second Tactical Air Force suffered very heavy casualties landing at Dog Green Sector of Omaha Beach to establish field operations in support of the American army.
The commander of Combined Operations Louis Mountbatten on 22 January 1942 recommended that the RAF create a number of Commando units.
These units, called Servicing Commandos, would accompany the Allied Armies when they invaded Europe, either to make German airfields serviceable or to make operational the new airstrips built by the Army Airfield Construction Units.
Commando units were involved in the major seaborne landings, either going in with the initial invasion forces or giving active support in other ways to keep the aircraft flying.
After the surrender of the Japanese Forces in August 1945 they took over Japanese held airfields, assisted in the evacuation of Allied prisoners of war and undertook other peace keeping duties in Java, Thailand and French Indo China.