Subject
World War, 1939-1945
1,139
World War, 1939-1945 Campaigns
502
History
247
United States History
150
Holocaust, Jewish (1939-1945)
83
World War, 1939-1945 Aerial operations, American
83
World War, 1939-1945 Diplomatic history
81
Reconstruction (1939-1951)
80
World politics
75
United States Foreign relations
68
World War, 1939-1945 Atrocities
63
World War, 1939-1945 Regimental histories
59
Japanese Americans Forced removal and internment, 1942-1945
56
History, Modern
53
World War, 1939-1945 Naval operations, American
50
World War, 1939-1945 Secret service
50
World War, 1939-1945 Cryptography
47
World War, 1939-1945 Underground movements
45
World War, 1939-1945 Causes
44
World War, 1939-1945 Claims
41
World War, 1939-1945 Concentration camps
41
Germany History
36
World history
36
Prisoners of war
34
World War, 1939-1945 Social aspects
34
World War, 1939-1945 Women
34
United States Politics and government
33
Generals
30
Great Britain Foreign relations
30
World War, 1939-1945 Aerial operations
30
World War, 1939-1945 Economic aspects
29
World War, 1939-1945 Prisoners and prisons, Japanese
29
Europe History
28
Soldiers
27
France History
26
World War, 1939-1945 Jews Rescue
26
Soviet Union History
25
World War, 1939-1945 Equipment and supplies
25
World War, 1939-1945 Confiscations and contributions
24
World War, 1939-1945 Destruction and pillage
24
Japan History
23
World War, 1939-1945 Influence
23
African Americans History
22
Germany Politics and government
22
World War, 1939-1945 Military intelligence
22
World War, 1939-1945 Evacuation of civilians
21
World War, 1939-1945 Propaganda
21
Pearl Harbor (Hawaii), Attack on, 1941
20
World War, 1939-1945 Jews
20
World War, 1939-1945 Naval operations Submarine
20
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