Subject Region
Soviet Union
529
United States
529
Europe
14
Berlin (Germany)
13
China
8
Germany
8
Great Britain
8
Middle East
8
Cuba
7
Europe, Eastern
7
Russia (Federation)
7
Germany (West)
6
Japan
6
Hiroshima-shi (Japan)
5
Iceland
5
Communist countries
4
Iran
4
Nagasaki-shi (Japan)
4
Alaska
3
Berlin
3
Bulgaria
3
Central America
3
Hiroshima-shi
3
Nagasaki-shi
3
East Asia
2
Finland
2
Geneva
2
Pacific Area
2
Reykjavík
2
Reykjavík
2
Russia
2
Switzerland
2
Taiwan
2
Afghanistan
1
Asia
1
Baltic States
1
California
1
Europe, Western
1
Horn of Africa
1
India
1
Kuril Islands (Russia)
1
Mediterranean Region
1
Moscow
1
Pakistan
1
Reykjavik
1
Romania
1
South America
1
Ukraine
1
Vietnam
1