What did the pentagon papers reveal?

American leaders mislead Congress and the American people about the war.

Explanation:

The Pentagon Papers revealed that the Harry S. Truman administration gave military aid to France in its colonial war against the communist-led Viet Minh, thus directly involving the United States in Vietnam; that in 1954 Pres. Dwight D. Eisenhower decided to prevent a communist takeover of South Vietnam and to undermine the new communist regime of North Vietnam; that Pres. John F. Kennedy transformed the policy of “limited-risk gamble” that he had inherited into a policy of “broad commitment”; that Pres. Lyndon B. Johnson intensified covert warfare against North Vietnam and began planning to wage overt war in 1964, a full year before the depth of U.S. involvement was publicly revealed; and that Johnson ordered the bombing of North Vietnam in 1965 despite the judgment of the U.S. intelligence community that it would not cause the North Vietnamese to cease their support of the Viet Cong insurgency in South Vietnam.

the name of the theory is landmass theory.