Background information on the United States government's system of classifying information sources...

Maintained by the National Defense University Library for international military education outreach, MERLN provides direct access to defense-related US policy statements on selected key topics...

In-depth interviews with veterans of World War II, the Korean War, the Cold War, and the Vietnam War...

A site designed to locate, index, and/or make available all appropriate private and public data regarding the Civil War, and to promote the study of the Civil War from the perspectives of all academic disciplines, professions, and occupations...

An "on-line military resource for researchers, hobbyists, military professionals and all others with an interest in military history, science and defense...

Comprehensive, well-illustrated website on the Great War...