German U-Boat Wrecks Were Sunk by Their Own Captains

Turkish divers explore the ruins of two German U-Boats that sit at the bottom of the Black Sea. The wrecks were once known as U20 and U23. As part of the Nazi navy, they cruised the waters of the Black Sea during World War II. The small fleet of six managed to sink 20 Soviet ships. Soviet forces managed to destroy three of the subs. To avoid having the military hardware fall into their enemy’s hands, the three remaining subs were scuttled by their captains in 1944.