Rubuta ci gaba don wannan sakin layi - Don mayar da martani ga wannan barazanar, Rundunar Sojan Ruwa ta Amurka ta gudanar da Operation Teardrop tsakanin Afrilu da Mayu 1945 don nutsewa Jirgin ruwan U-Boat na Jamus da aka gano yana zuwa ga Gabashin Gabas, wanda aka yi imanin cewa yana dauke da makamai na V-1 ko V-2. Biyar daga cikin bakwai Type IX submarines da aka ajiye a Amurka da aka sunk; hudu tare da su duka ƙungiya. An kama ma'aikatan jirgin guda talatin da uku. Bayan karshen yakin a Turai
, jiragen ruwa na karkashin ruwa, "U-805", "U-858" kuma sun mika wuya a teku kafin su koma sansanoni a gabar gabashin Amurka.