Mezue ahịrịokwu na-esonụ: Operation Sledgehammer bụ atụmatụ Allied maka mwakpo nke Europe n'oge Agha Ụwa nke Abụọ, dị ka nzọụkwụ mbụ iji nyere aka belata nrụgide na Red Red Army site na ịtọlite usoro agha siri ike.
Ebe nke Abụọ. A ga-eme ya na 1942 ma rụọ ọrụ dị ka ihe ọzọ na-eme ka Operation Roundup, atụmatụ mbụ nke Allied maka mwakpo nke Europe na 1943. Ndị agha Allied ga-ejide ọdụ ụgbọ mmiri Atlantic nke France nke Brest ma ọ bụ Cherbourg na mpaghara nke Cotentin Peninsula n'oge mgbụsị akwụkwọ mbụ nke 1942, ma chịkọta ndị agha maka mgbapụ n'oge opupu ihe ubi nke 1943.