Subject
History
United States Politics and government
39
United States Foreign relations
28
Intelligence service History
20
United States History, Military
18
Cold War
17
Officials and employees
16
World War, 1939-1945
16
World War, 1939-1945 Campaigns
16
Baseball History
13
United States Race relations History
10
Vietnam War, 1961-1975
10
World War, 1939-1945 Regimental histories
10
Officers
9
Procurement
9
United States Military policy
9
African Americans Civil rights History
8
Civil rights movements History
8
Germany History
8
Soviet Union Foreign relations
8
United States History
8
Organization
7
Political and social views
7
Reorganization
7
Supplies and stores
7
World politics
7
African Americans Politics and government
6
Aviation
6
Command of troops History
6
Conservatism History
6
Criticism and interpretation
6
Criticism, interpretation, etc
6
Influence
6
Military education History
6
Military planning
6
National security History
6
Soviet Union Military policy
6
Transportation
6
United States Armed Forces History
6
United States History, Naval
6
United States Military relations
6
Vietnam War, 1961-1975 Aerial operations, American
6
Vietnam War, 1961-1975 Naval operations, American
6
World War, 1914-1918 Medical care
6
Art, Modern
5
Cabinet officers
5
Christianity and politics History
5
Criticism History
5
Doctrines
5
Ireland History
5
more ...