During the Second World War Eddie served as a Flight Sergeant in No. 224 Sqn RAF. The squadron main role was as an anti-submarine unit and was based variously in Cornwall, Northern Ireland, Scotland and Hampshire. The unit flew Lockheed Hudson and from 1942 Consolidated Liberators.
In October 1943 while working as a wireless operator he was awarded the Distinguished Flying Medal. The citation reads:
CHEEK, Edmund. 553156 Flight Sergeant, No.224 Sqn.
L.G. 1/10/1943. Wireless Operator. Press Release.
This airman has taken part in many operational sorties against enemy submarines and shipping, both from this country and America. On his return to the United Kingdom, he was posted to his present squadron where he has continued to show a fine fighting spirit and great ability. He has taken part in eight attacks on U-boats in addition to many searches and strikes against surface vessels. On one occasion, his aircraft was pursued for 45 minutes be an enemy fight which was successfully evaded, largely due to fire control and commentary furnished by Flight Sergeant Cheek. His coolness and efficiency as a Wireless Operator have been highly commendable.
In 1947 he was promoted to Flight Lieutenant. When he left the RAF he joined the Colonial Service and was Air Traffic Controller in Zanzibar. He and his family lived all over East Africa before his job took him the The Solomon Islands in the Pacific, and the Kiribati. He was awarded the Air Force Cross in June 1955.