German_submarine_U-34_(1936)--Fritz_Rentrop

German submarine U-34 was a Type VIIA U-boat of Nazi Germany's Kriegsmarine during World War II.
She was laid down in September 1935, launched in July 1936 and commissioned in September.
U-34 and sister boat U-33 took part in Operation Ursula during the Spanish Civil War, with U-34 becoming the first German submarine to sink another vessel since the end of World War I in 1918.
During World War II the boat carried out seven patrols, sinking 22 ships and capturing two more. She was sunk in a collision in the Baltic in August 1943.