Geographic Subject
Soviet Union
124
United States
92
Middle East
55
Latin America
35
Iran
26
Israel
23
Egypt
18
Cuba
14
Arab countries
11
Turkey
11
Brazil
10
Iraq
10
Persian Gulf Region
10
Colombia
8
Mexico
7
Venezuela
7
Europe
6
Palestine
6
Saudi Arabia
6
Chile
5
China
5
Peru
5
America
4
Caribbean Area
4
Jordan
4
Panama
4
Africa
3
Bolivia
3
Europe, Eastern
3
Indian Ocean Region
3
Kuwait
3
Lebanon
3
Mediterranean Region
3
Suez Canal (Egypt)
3
Syria
3
Andes Region
2
Argentina
2
Asia
2
Canal Zone
2
Central America
2
Communist countries
2
Cyprus
2
Ecuador
2
Germany (East)
2
Guatemala
2
India
2
Nicaragua
2
Scandinavia
2
Suez Canal
2
Vietnam
2
more ...