🌐EnglishEnglishFrançaisItalianoPolskiالعربيةفارسی中文EntityQ15274081· pop 7· linked from 132 articlesSM UB-54Connectionsgross register tonnageEntityFlanders U-boat flotillasEntityCategories1917 shipsGerman Type UB III submarinesMaritime incidents in 1918Ships built in Bremen (state)U-boats commissioned in 1917U-boats sunk by British warshipsU-boats sunk by depth chargesU-boats sunk in 1918World War I shipwrecks in the North SeaWorld War I submarines of Germany