Pak 18 Tests of the German 37 mm-FlaK 18 anti-aircraft gun in barotonnele. The tunnel was built to test anti-aircraft and air armaments, it had the 400 metres in length, the atmospheric pressure in the shooting could reduce to a level that corresponds to a pressure at an altitude of 20,ooo Feet .Location: Braunschweig, Germany in 1940
This is an amazing photograph of German vehicles attempting to escape from the closing noose of the Allied armies. They are attempting to cross one of the remaining bridges outside of Aachen in 1945. This photo was taken by an American recon plane.