German chancellor Adolf Hitler gives the Nazi salute during the opening ceremony of the Berlin Olympics 01 August 1936. HO / AFP On July 20, 1944, at 12:42, a bomb went off in the conference room of the Wolf's Lair military headquarters in East Prussia, the easternmost province of the German Reich until the end of World War II. It was supposed to kill Adolf Hitler, and had been planted by German army officer Claus Schenk Graf von Stauffenberg. The former ardent National Socialist now no longer saw any other option apart from murdering the dictator. "There is nothing left...