Alan enlisted in the CMF (Citizens Military Force) with Service No V197506 as an 18 year old. He transferred to the AIF on 4 Jan 1943 with Service No VX121270 and he was trained at the 1st Aust Commando Training Squadron, Canungra, Qld, before joining the unit on 3 Jan 1943 as a Trooper. He embarked with the unit for New Guinea aboard S.S. “DUNTROON” on 17 Jun 1943 in No 9 Section, "C" Troop and returned to Australia with them aboard “TAROONA” on 3 Sept 1944.
He transferred to Lugger Maintenance Platoon in Darwin and was discharged on 20 Nov 1945.
He has a Service No 31696 which generally denotes post WW2 service. He also went under the name on Leslie Allan Mitchell
He is known to have received the 1939-45 Star, Pacific Star, War Medal and Australian Service Medal 1939-45, pictured below.