In 1966, Helms as the new DCI inherited a CIA "fully engaged in the policy debates surrounding Vietnam." The CIA had formed "a view on policy but expected to contribute impartially to the debate all the same." American intelligence agents had a relatively long history in Vietnam, dating back to OSS contacts with the communist-led resistance to Japanese occupation forces during World War II. In 1953 the CIA's first annual National Intelligence Estimate on Vietnam reported that French prospects may "deteriorate very rapidly". After French withdrawal in 1954, CIA officers including Lt. Col. Edward Lansdale assisted the new President Ngo Dinh Diem in his efforts to reconstitute an independent government in the south: the Republic of Viet Nam.