Region
Soviet Union
289
United States
116
Great Britain
18
China
16
Europe
16
Germany
15
Russia (Federation)
13
Europe, Eastern
10
Developing countries
9
Russia
7
Middle East
6
Berlin (Germany)
5
Cuba
4
Germany (East)
4
Japan
4
Austria
3
Finland
3
Germany (West)
3
Poland
3
Afghanistan
2
Arab countries
2
Berlin
2
Geneva
2
Hungary
2
Israel
2
Latin America
2
Near East
2
Switzerland
2
Africa
1
Alaska
1
Asia
1
Asia, Central
1
Balkan Peninsula
1
Baltic States
1
Belarus
1
Berlin Wall, Berlin, Germany, 1961-1989
1
Bulgaria
1
Canada
1
Caribbean Area
1
Central Europe
1
Communist countries
1
Eastern Front
1
Ethiopia
1
Europe, Western
1
France
1
Greece
1
Hiroshima-shi (Japan)
1
History
1
Horn of Africa
1
Iceland
1
more ...