The Congressional Record is the official record of the proceedings and debates of the United States Congress. It is published daily when Congress is in session. The Congressional Record began publication in 1873. Debates for sessions prior to 1873 are recorded in The Debates and Proceedings in the Congress of the United States (1789-1824), the Register of Debates in Congress (1824-1837), and the Congressional Globe (1833-1873)

This is the first of a series of chronological histories prepared by the Marine Corps History and Museums Division to cover the entire span of Marine Corps involvement in the Vietnam conflict. This particular volume covers a relatively obscure chapter in U.S. Marine Corps history—the activities of Marines in Vietnam between 1954 and 1964. The narrative traces the evolution of those activities from a one-man advisory operation at the conclusion of the French-Indochina War in 1954 to the advisory and combat support activities of some 700 Marines at the end of 1964. As the introductory volume for the series this account has an important secondary objective: to establish a geographical, political, and military foundation upon which the subsequent histories can be developed.