SM U-155, a Type U 151 submarine launched in 1916; known as the merchant submarine Deutschland from launch; commissioned as U-155 on 19 February 1917; served in World War I until surrendered on 24 November 1918; used as an exhibition in London; broken up at Morecambe in 1922
During World War I, Germany also had this submarine with a similar name:
SM UB-155, a Type UB III submarine laid down but uncompleted at the end of the war; surrendered to France and became French submarine Jean Corre; broken up 1936
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