US Armed Forces in Vietnam, 1954- 1975 are microfilmed copies of official and unofficial papers relating to the US Army involvement in the Vietnam War, 1954-1975. Papers are categorised into the following sections: 'Vietnam: Reports of US Army Operations', US Army after action reports during the Vietnam War, 1966-1969; 'Vietnam: US Army senior Officer Debriefing Reports', senior US Army officer debriefing reports during the Vietnam War, 1968-1973; 'Vietnam: Lessons Learned', post-action analyses of the conflict in Vietnam, 1972-1980, and; 'Indochina Studies', reports presented to the US Army Center of Military History, Washington, DC, relating to the effect of the Vietnam War on the Republic of Vietnam, Cambodia (and later the Khmer Republic), and Laos, 1979-1980. US Army after action reports presented to the US Adjutant General's Office (Army), Washington, DC, relate to military operations, including the US joint operation, Operation CRIMP, the attack by air and land to strike at Viet Cong strongholds in the Republic of Vietnam (RVN), Jan 1966; and, search and destroy missions and military operations pursued in the Republic of Vietnam by US 1 Infantry Div, US 1 Cavalry Div, US 1 Cavalry Div, US 25 Infantry Div, US 18 Infantry Div, US 101 Airborne Div (Airmobile), US 1 Air Cavalry Div, US 4 Infantry Div, US 11 Armored Cavalry Regt, 1 Australian Task Force, US 1 Special Forces, Feb 1966-Apr 1969. Senior officer debriefing reports presented to the Adjutant General's Office (Army), Washington, DC, relate to US Army organisation and command; Vietnamese local government counterinsurgency actions; the Mission of the US Army Support Command, Saigon; the causative factors of Vietnamese insurgency; US psychological operations (PSYOPS); US Army medical statistics; the US pacification program; the US 101 Airborne Div (Airmobile) re-organisation following the Tet Offensive, 30 Jan- 24 Feb 1968; US Special Forces assistance to the Vietnamese Special Forces; land clearing in Indochina; US Long Range Patrol Activities; the Phoenix Program; the process of 'Vietnamization'; and, the US Army Drug Abuse Program, Feb 1968-Nov 1972. Papers presented to the US Department of the Army on lessons learned from the Vietnam War primarily relate to base development in the Republic of Vietnam; US Army communications and electronics; airmobility; riverine operations; US Army Special Forces operations; US Army command and control; financial management of the campaign in Vietnam; logistics and support; US military intelligence; US tactical and material innovations; allied participation and contributions to the war; US training of the Army of the Republic of Vietnam; and, the effect of the war on the US soldier, 1972-1980. 'Indochinese Studies' papers presented to the US Army Center of Military History, Washington, DC, relate to the Vietnam War and its effect on Cambodia and the communist Khmer Rouge; the North Vietnamese Army and Viet Cong Easter Offensive against the Republic of Vietnam; the effect of the pacification program on the South Vietnamese population; the state of Royal Lao Army; and, the effect of the war on South Vietnamese society and the Republic of Vietnam Armed Forces, 1979- 1980.

Public Statements by the Secretaries of Defense, 1947-1981 are microfilmed copies of official statements, press releases, speeches, announcements and memoranda released by successive US Secretaries of Defense, 1947-1981. Compiled by the US Department of Defense at the Pentagon, Washington, DC, the material reflects US government national security concerns during the height of the Cold War. Arranged chronologically, the series includes statement before the US Senate Foreign Relations Committee regarding the European Recovery Program (Marshall Plan), 1948; statement before the Foreign Affairs Committee of the House of Representatives on aid to Greece and Turkey, 1948; memoranda relating to Civil Defense Planning, 1948; statement on biological warfare potentialities, 1949; statements relating to the North Atlantic Treaty Organization, 1949-1981; remarks at the unveiling of the memorial to British FM Sir John (Greer) Dill, 1950; testimony relating to the military situation in the Far East and the Balkans; statements relating to the Mutual Security Pact, 1952 and the Mutual Security Program, 1953; statement regarding the deployment of nuclear weapons for air defence, 1957; statement before the Senate Committee on Armed Services relating to satellite and missile programs, 1958; testimony regarding the Foreign Assistance Act, 1962; press conferences relating to the Cuban Missile Crisis, 1962; joint statements with Gen Maxwell Davenport Taylor, Chairman, US Joint Chiefs of Staff, relating to the situation in the Republic of Vietnam, 1963; press conference regarding Gulf of Tonkin 'incident', 1964; statement regarding the appointment of Gen William Childs Westmoreland as Commander, Military Assistance Command, Vietnam, 1964; press releases relating to the increased commitment of US ground troops to Vietnam, 1966; testimony regarding US operations in Cambodia, 1970; press conferences relating to US-Soviet Inter-Continental Ballistic Missile (ICBM) tests, 1970; statements regarding US arms sales to Israel during the 1973 Yom Kippur War, 1974; statements regarding the fall of Saigon, Republic of Vietnam, to the North Vietnamese Army, Apr 1975; testimony relating to nuclear technology, including the Minuteman II nuclear missile, 1976; statements regarding Stealth technology and its application, 1980.