Operation Tonga was the last that Tetrarchs saw of active combat. During the first week of October 1944, the 6th Airborne Armoured Reconnaissance Regiment underwent an extensive reorganization, in which it was completely restructured, and all the remaining Tetrarchs were retired. They were replaced with the M22 Locust, a purpose-built airborne light tank of American design; eight Locusts were used by the regiment in March 1945 during Operation Varsity, the airborne operation to cross the river Rhine. A report issued by the Director (Air) of the War Office in January 1946 confirmed that the Tetrarch design was considered obsolete, and any light tanks used in post-war airborne formations would be entirely new in design. A small number of Tetrarchs remained in service with the 3rd Hussars until 1949; a Hamilcar glider flight was stationed at RAF Fairford, and a troop of Tetrarchs was kept by the regiment for training exercises with the gliders. However, glider training by the regiment was stopped in 1950 and the Tetrarchs withdrawn from service.