Primary documents on United States foreign policy are available online via the database Digital National Security Archive.
The Digital National Security Archive contains declassified documents on United States foreign and military policy, 1945-2002. These documents are grouped into collections. Some of the collections are:
- Peru: Human Rights, Drugs and Democracy, 1980-2000
- China and the United States: From Hostility to Engagement, 1960–1998
- El Salvador: War, Peace, and Human Rights, 1980–1994
- Iraqgate: Saddam Hussein, U.S. Policy and the Prelude to the Persian Gulf War, 1980–1994
- Iran: The Making of U.S. Policy, 1977–1980
- Terrorism and U.S. Policy, 1968–2002
- U.S. Intelligence on Weapons of Mass Destruction: From World War II to Iraq
- Presidential Directives on National Security, Part I: From Truman to Clinton
- Presidential Directives on National Security, Part II: From Truman to George W. Bush
These documents reveal how United States foreign policy was shaped.