Region
United States --
278
United States
228
Soviet Union --
19
China
17
Soviet Union
17
Middle East
14
Middle East --
11
China --
9
Iraq
9
Europe
8
Japan --
8
Malaysia --
8
Afghanistan --
7
Iraq --
7
Japan
7
Cuba --
6
Israel --
6
Afghanistan
5
Cuba
5
France
5
Germany
5
Germany --
5
Iran --
5
Malaysia
5
United States --
5
Vietnam --
5
Africa --
4
Canada --
4
Europe --
4
Great Britain
4
Great Britain --
4
India --
4
Lebanon --
4
Vietnam
4
Africa
3
Asia
3
Asia --
3
Developing countries --
3
Iran
3
Malaya
3
Malaya --
3
New York
3
Pakistan
3
Pakistan --
3
Panama --
3
Russia --
3
Singapore
3
Singapore --
3
Southern States --
3
United states --
3
more ...