Tanks in World War II the North African campaign. It continued to serve in the Red Army for some time, and in a single campaign in the Pacific. Red Army crews nicknamed it "grave for seven brothers" referring to the seven-man crew. The most important American design of the war was the M4 Medium Tank, or "Sherman" in British service. The M4 Medium became the second-most-produced tank of World War II, and was the only tank to be used by virtually all Allied forces (thanks to the American lend-lease program); approximately 40,000 M4 Mediums were produced during the war. M4s formed the main tank of
American women in World War II and Vichy French codebooks. Virginia Hall, who was labeled by the Gestapo as "the most dangerous of all alien spies", disguised herself as a milkmaid in France in order to spy on German forces. In 2017, Sadie O. Horton, who spent World War II working aboard a U.S. Merchant Marine barge, posthumously received official veteran’s status for her wartime service, becoming the first recorded female Merchant Marine veteran of World War II. U.S. women also performed many kinds of non-military service in organizations such as the American Red Cross and the United Service Organizations (USO). Nineteen million American women filled