Today in World War II History—July 21, 1944
Sunday, July 21, 2019 by Sarah Sundin
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.