Pedzisa mutsara unotevera: Pashure pokunge kurwisa kweJapan Pearl Harbor kwakasundira America muhondo pamutemo musi wa7 December 1941, "Niblack" yakaramba ichiperekedza ngarava dzokuNorth Atlantic kuReykjavík, Iceland, Derry, Northern Ireland, uye Greenock, Scotland. Muna July 1942 akaendeswa kuCaribbean nokuda kwebasa renguva pfupi pakukwirira kweU-boat campaign ikoko, achidzorera basa rekuchamhembe muna August. MunaNovember 1942, akafambisa boka rokutanga rokutsigira kuenda kuCasablanca pashure pokunge
Mauto eAllies anoburukira paMhenderekedzo yeMorocco. Ngarava yacho yakabva yaita basa rokuperekedza ngarava dzomumhenderekedzo yegungwa kusvikira yaenda kuMers-el-Kébir, Algeria, kutanga kwaMay 1943.