The Foreign Relations of the United States series presents the official documentary historical record of major U.S. foreign policy decisions and significant diplomatic activity."
This is a is a treasure trove of important documents from U.S. history, including the Declaration of Independence, US Constitution, Bill of Rights, and more.
Intelligence Agencies
For the documents released through the Freedom of Information Act (FOIA) see the FOIA tab and the Commercial Sources tab.
This online collection includes documents decided upon by the ISCAP starting in Fiscal Year 2012. The documents include records from the Presidential Library system of the National Archives, the Central Intelligence Agency, National Security Agency, the Department of Defense, and other agencies.