Region
United States --
United States
23
Europe --
15
Europe
14
Soviet Union
5
Middle East
3
Middle East --
3
Soviet Union --
3
Turkey
3
Turkey --
3
Great Britain --
2
Russia (Federation)
2
Russia (Federation) --
2
Bosnia ans Hercegovina
1
Canada
1
Canada. Treaties, etc. 1992, Oct.7
1
Developing countries
1
Developing countries --
1
Germany (West) --
1
Great Britain
1
New Zealand
1
New Zealand --
1
Russia
1
Russia --
1
Singapore
1
Singapore --
1