<P> The Pentagon Papers, officially titled United States--Vietnam Relations, 1945--1967: A Study Prepared by the Department of Defense, is a United States Department of Defense history of the United States' political - military involvement in Vietnam from 1945 to 1967 . The papers were released by Daniel Ellsberg, who had worked on the study; they were first brought to the attention of the public on the front page of The New York Times in 1971 . A 1996 article in The New York Times said that the Pentagon Papers had demonstrated, among other things, that the Johnson Administration "systematically lied, not only to the public but also to Congress". </P> <P> More specifically, the papers revealed that the U.S. had secretly enlarged the scope of its actions in the Vietnam War with the bombings of nearby Cambodia and Laos, coastal raids on North Vietnam, and Marine Corps attacks, none of which were reported in the mainstream media . </P>

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