HeinOnline: Pentagon Papers provides a detailed account of both the political and military involvement of the United States in Vietnam during the period 1945-1967. These documents are the result of a study produced by the Department of Defense and contain a history of both the year-to-year developments of the armed conflict and the corresponding political implications on a global scale. This includes the transition from French involvement to U.S. continuance of the conflict, including reports on major operations such as Rolling Thunder. These documents provide a multifaceted look at the many concerns facing multiple administrations during this time. Start your research here.