Ramree Island
Jetley was commissioned on 5 July 1942 and served in Arakan, Burma. He took part in the Battle of Ramree Island and the Allied landings at Letpan, mainland Burma, where, as naval Forward Observation Officer for a field artillery regiment, he called in the naval bombardment. From 1945 to 1946, he served with an Indian anti-tank regiment in Sumatra, Indonesia as a part of the British occupation.