For all of the war, a Troop Carrier Group (TCG) was always present at Lawson conducting training and providing aircraft for the Parachute School. In June 1943, the 10th TCG became a Replacement Training Unit in addition to the mission of dropping troopers for the Parachute School. The 3rd Composite Squadron was also present at Lawson from April 1942 to November 1945 with a wide variety of fighter, light bombers, and liaison/observation aircraft to provide aerial support for training by the Infantry School.