Subject
History
18
Man-woman relationships
14
World War, 1914-1918
11
World War, 1939-1945
11
Campaigns
4
Triangles (Interpersonal relations)
3
Adultery
2
Aerial operations
2
Fighter pilots
2
Housewives
2
Journalists
2
Napoleonic Wars, 1800-1815
2
Ordnance disposal units
2
Plantation life
2
Reconstruction (U.S. history, 1865-1877)
2
Social life and customs
2
Underground movements
2
Women spies
2
Americans
1
Amputees
1
Arab-Israeli conflict
1
Armada, 1588
1
Armistices
1
Assassination
1
Atonement
1
Bachelors
1
British
1
Christmas Truce, 1914
1
Communists
1
Conquerors
1
Cowardice
1
Elite (Social sciences)
1
Enemies
1
Espionage
1
Ex-Nazi concentration camp inmates
1
Ex-internment camp inmates
1
False testimony
1
Fascists
1
Femmes fatales
1
Gay couples
1
Gay military personnel
1
Gays
1
Geographers
1
Ghosts
1
Guerrillas
1
Hand-to-hand fighting
1
Holocaust, Jewish (1939-1945)
1
Hostages
1
Intelligence officers
1
Intrenchments
1
more ...