Wartime Conferences of the Combined Chiefs of Staff (World War II)
"Published here are proceedings of the eight major conferences of the Combined Chiefs of Staff during the war. At these sessions, topics ranged from strategy for particular campaigns to debate over postwar occupation. The CCS records are critical for research on the formation of Allied strategy and the dynamics of the wartime alliance."
Records of the Joint Chiefs of Staff: Meetings of the JCS (1942-45); the Soviet Union (1942-45); the Middle East (1946-53); the Soviet Union (1946-53)
Papers of George C. Marshall : selected World War II correspondence
Propaganda relating to World War II, including pre- and post-war years, 1920-1949
Rare Books
Finding aids: https://static-prod.lib.princeton.edu/scsites/pamphlets/
Manhattan Project: Official History and Documents
"The Manhattan Project has been called the most outstanding achievement of applied science. With the declassification in 1976 of the files of the Manhattan Project, historians were at last given the opportunity to study the project's files, foremost among which is the official history of the enterprise. The documents that are appended to the appropriate volumes of the official history add even more depth to the account."