SM U-7 (Germany)

SM U-7 was a Type U 5 U-boat, one of the 329 that served in the Imperial German Navy in World War I. U-7 took part in the First Battle of the Atlantic.

Fate
On 21 January 1915, U-7 was torpedoed and sunk by SMU U-22 (Germany), which had mistaken her for an enemy submarine. Twenty-four crew were killed, and only one survived.