Through the Digital National Security Archive, the National Security Archive and ProQuest Information and Learning Company (formerly Chadwyck-Healey) have joined forces to produce the most comprehensive collection available of significant primary documents central to U.S. foreign and military policy since 1945. Over 55,000 of the most important, declassified documents – totaling more than 420,000 pages – are included in the database. Many are published now for the first time.
The National Security Archive is a non-profit research institute and library in Washington, D.C., which provides unprecedented public access to declassified government documents obtained through extensive use of the U.S. Freedom of Information Act (FOIA).
More:
http://nsarchive.chadwyck.com/