Region
United States --
425
United States
276
United states --
61
China --
28
Soviet Union --
28
Soviet Union
26
China
20
Japan --
16
Japan
14
Europe
13
Europe --
13
Middle East
13
Middle East --
13
East Asia
10
Great Britain --
10
India
9
India --
9
Israel
9
Israel --
9
Taiwan
9
Taiwan --
9
Developing countries
8
East Asia --
8
Great Britain
8
Asia
7
Panama --
7
United States - --
7
Asia --
6
Iran
6
Iran --
6
Iraq
6
Panama
6
Cambodia --
5
Developing countries --
5
Iraq --
5
Korea
5
Korea --
5
Latin America
5
Russia (Federation) --
5
Southeast Asia
5
Southeast Asia --
5
United Nations
5
Afghanistan
4
Afghanistan --
4
Arab countries --
4
Latin America --
4
Pacific --
4
Pacific area
4
Russia (Federation)
4
Vietnam
4
more ...