Upon the war's conclusion, Anton Flettner was held in the "Dustbin" interrogation camp at Kransberg Castle.[17] After 1945, Flettner, along with many other aviation pioneers, was brought to the United States as part of Operation Paperclip.[18] Flettner and his partner, Dr. Kurt Hohenemser, were among the first German emigrants into the United States after World War II.[19]