Archives Unbound This link opens in a new windowPrinceton Library has access to some files of declassified material on China (and some Japan) on national security, namely on the Chinese Civil War and the Tiananmen Square incident. These collections have now moved into the Archives Unbound database, also known as the Declassified Documents Reference Service, and newly include also Records of the U.S. Information Service in China: Chinese Press Reviews and Summaries, 1944-1950; 19th Century English-Language Journals from the Far East; General George C. Marshall's Mission to China, 1945-1947; Political, Economic, and Military Conditions in China: Reports and Correspondence of the U.S. Military Intelligence Division, 1918-1941; and Political Relations and Conflict between Republican China and Imperial Japan, 1930-1939: Records of the U.S. State Department.