Region
United States
20
United States --
17
India
14
India --
10
Korea (North)
10
Pakistan
10
Iran
9
Korea (North) --
6
Pakistan --
6
South Asia
6
Great Britain
5
Iran --
5
Iraq
4
South Asia --
4
China
3
China --
3
East Asia
3
Middle East
3
East Asia --
2
Former Soviet Republics
2
Jammu and Kashmir (India) --
2
Japan
2
Japan --
2
Middle East --
2
New Zealand --
2
Soviet Union
2
Artic regions
1
Asia
1
Asia, Southeastern
1
Asia, Southeastern --
1
Australia --
1
Europe
1
Europe --
1
Former Soviet Rebuplics
1
Former Soviet republics
1
France
1
Great Britain --
1
Iraq --
1
Korea
1
Korea (NOrth)
1
Korea (South)
1
Korea (South) --
1
Korea --
1
Malaysia
1
Malaysia --
1
New Zealand
1
North Atlantic Treaty Organization --
1
Russia (Federation)
1
Russia (Federation) --
1
Soviet Russia
1
more ...