Mezue ahịrịokwu na-esonụ: Mgbe Agha nke Britain Lock jere ozi na
Channel n'ihu, na-efe efe na-awakpo sweeps n'elu France. Lock gara n'ihu weta ngụkọta ya niile na mmeri 26 nke ikuku, otu ekekọrịtara ma bibie ya na asatọ nwere ike ịbụ na izu 25 nke arụmọrụ arụmọrụ n'ime otu afọ, n'oge ọ nọrọ n'ụlọ ọgwụ ọnwa isii. N'ime ngụkọta mmeri ya, e nwere ụgbọ elu ndị agha German 20, 18 n'ime ha bụ Messerschmitt Bf 109. N'etiti afọ 1941, e buliri Lock n'ọkwa nke onye ọfịsa ụgbọelu.