Putting special operations under a ""psychological"" organization paralleled the military's development of U.S. Army Special Forces, which was created by a Pentagon unit called the Psychological Warfare Division. "NSC 10/5, issued in October 1951, reaffirmed the covert action mandate given in NSC 10/2 and expanded CIA's authority over guerrilla warfare" The incoming Eisenhower administration soon abolished the PSB, but the expansion of the CIA's covert action writ in NSC 10/5 helped ensure that covert action would remain a major function of the Agency.