Colin joined the unit on Timor as a Private, from 75th Light Aid Detachment, after the fall of Koepang, approx. March 1942.
He was one of the former Koepang men, who moved to the village of Mape for intensive commando training and on 8 May 1942, they were formed into a new Platoon, “D” Platoon under the command of Lieutenant Turton and later under Lt Doig.
After the campaign on Timor, he embarked with the unit, for Australia aboard the Royal Dutch destroyer “Tjerk Hiddes” on 11 Dec 1942.
He was discharged on 5 Dec 1945.