ANSWER KEY: 1) Germany - During WWI, the German Empire was one of the Central Powers that lost the war. 2) Lusitania - Germany introduced unrestricted submarine warfare following the sinking of the Lusitania in[removed])

Source URL: www.nationalmuseum.af.mil

• Eddie Rickenbacker
• Red Baron
• SPAD S.XIII
• Sopwith Camel
• SPAD S.VII
• SPAD S.XI
• World War I aviation
• Aviation
• World War I
• Transport