Adolf Hitler—accompanied by "Generalfeldmarschall" Wilhelm Keitel, his former naval adjutant Commander Karl-Jesko von Puttkamer, and his "Luftwaffe" adjutant "Oberst" Nicolaus von Below, among others—visited "Bismarck" on 5 May 1941. Missing was Grand Admiral Erich Raeder. Hitler was taken on a tour of the ship by Admiral Lütjens and inspected the various battle stations. Hitler and Lütjens also met in private and discussed the risks of a mission in the North Atlantic. After this meeting, Hitler and the officers of "Bismarck" had lunch in the officers' mess, where Hitler spoke about America's unwillingness to enter the war. Lindemann openly disagreed with Hitler, expressing his opinion that the possibility of the United States entering the war could not be ruled out.