SM U-125, a Type UE II submarine launched in 1918 and that served in World War I until surrendered on 26 November 1918; served as the Japanese submarine O-1, 1920–21; broken up at Sasebo Navy Yard between January and March 1921; rebuilt as testbed for submarine salvage work in 1925; recommissioned as Auxiliary Vessel No. 2900 in 1931; taken out of service in 1935
During World War I, Germany also had this submarine with a similar name:
This article includes a list of ships with the same or similar names. If an internal link for a specific ship led you here, you may wish to change the link to point directly to the intended ship article, if one exists.