Hitler disapproved of the military personnel's freedom to smoke, and during World War II he said on March 2, 1942, "it was a mistake, traceable to the army leadership at the time, at the beginning of the war". He also said that it was "not correct to say that a soldier cannot live without smoking". He promised to end the use of tobacco in the military after the end of the war. Hitler personally encouraged close friends not to smoke and rewarded those who quit smoking. However, Hitler's dislike for tobacco was only one of several reasons behind the anti-smoking campaign.