Mezue ahịrịokwu na-esonụ: N'ịgbaso ọrụ na Middle East, Evans sonyeere RAF Fighter Command ebe ọ bụ onye ọrụ mgbaàmà na ntiwapụ nke Agha Worldwa nke Abụọ. N'afọ 1941, e nyere ya iwu nke Fighter Interception Unit na Ford ma bụrụkwa onye na-ahụ maka iwebata usoro ọhụụ na-aga nke ọma. O jiri aka ya gbuo ndị agha iro abụọ ma nye ya ihe nrite nke Distinguished Flying Cross na 1942. Mgbe ọ dị afọ iri atọ, e buliri ya n'ọkwa onye isi otu wee gaa n'isi ụlọ ọrụ No. 11 (Fighter) Group na-ahụ maka ọrụ abalị. N'afọ 1943, e zigara ya na Mediterranean ebe ọ rụrụ ọrụ n'akụkụ ikuku nke atụmatụ mgbaàmà maka ndị
Ịwakpo Sicily. Mgbe e mesịrị, ọ rụrụ ọrụ yiri nke ahụ na Allied Expeditionary Air Force maka Normandy Landings.