2 WW2 Kriegsmarine WWII German Ring U-Boat Germany U-Boot Unterseeboot NAVY Army

  

2 WW2 Kriegsmarine WWII German Ring U-Boat Germany U-Boot Unterseeboot NAVY Marine Jewelry Silver Badge on Bronze Ring #45. In May 1941 the British were able to break into German secret naval Enigma communications and could henceforth rerout convoys around U-boat concentrations.