Submarine flotilla in Bergen 2nd submarine flotilla in Bergen, Norway. In the center is U-2511. This is the only boat of the TWENTY-FIRST series, which completed its patrols April 30, 1945 U-2511 commanded by Captain Adalbert Schnee after a patrol into the Caribbean Sea. May 2, 1945 after safely passed two English anti-submarine cordons appeared in the Atlantic. May 4, 1945 just to receive a radio order to suspend patrols and to return to base in connection with the surrender of Germany.