
US officers plant flag eight minutes after troops begin landing on Guam, 21 July 1944 (US National Archives)
75 Years Ago—July 21, 1944: US Army and Marines invade Japanese-held Guam with heavy opposition.
Many of the July 20 Operation Valkyrie conspirators who attempted a coup are arrested, and Col. Count Claus von Stauffenberg, who attempted to assassinate Hitler, is executed.