De Havilland DH.9 from September 1918 and to move to France in October 1918 but in a major re-organisation of squadrons after the Royal Air Force was formed the squadron disbanded on 4 July 1918 without becoming operational.[2][3][4]
Reformation in the Second World War
The squadron reformed on 15 August 1941 as a fighter unit equipped with the
Mingaladon from the 28th. The aircraft were almost entirely lost in the fighting, and to avoid being overrun by the Japanese advance the ground crew were evacuated to Calcutta, embarking on 20 February. The squadron was reformed there at Dum Dum from 27 March and began flying convoy patrols, moving to air defence duties and sweeps over Burma in January 1943. For the latter, it operated from fields code named George/Hove from 23 January, Ramu/Reindeer from 13 May, and Dohazari from 16 May.[4]135 Sqn Thunderbolt Is at Chittagong
, circa 1944.
Withdrawn to
Akyab on 24 April. The squadron continued the ground attack missions until May 1945, when it was withdrawn from combat before being renumbered to 615 Squadron on 10 June 1945.[2] Its final station was Chakulia from 17 May.[4]
