 Stevens deployed to the Territory of New Guinea in late 1944 for action in the Aitape–Wewak campaign, advancing along the coast to Wewak and clearing Japanese units from the Aitape-Wewak & Maprik area.The campaign inflicted heavy losses on the Japanese 18th Army.He was appointed the Companion of the Order of the Bath for "gallant and distinguished service" and "outstanding leadership in operations against the Japanese" in 1946.