🌐EnglishEnglishFrançaisPolskiالعربيةفارسی中文EntityQ15274089· pop 6· linked from 143 articlesSM UB-661917 Type UB III submarineConnectionsgross register tonnageEntityUnited KingdomCountryDenmarkCategories1917 shipsGerman Type UB III submarinesMissing U-boats of World War IShips built in KielU-boats commissioned in 1917U-boats sunk in 1918World War I shipwrecks in the Aegean SeaWorld War I submarines of Germany