Region
Afghanistan
2
Afghanistan --
4
Africa
2
Africa --
2
Africa, Northeast
1
Africa, Northeast --
1
Asia
13
Asia --
12
Asia, Central
1
Asia, Central --
1
Asia, Southeastern
6
Asia, Southeastern --
6
Austria --
1
Baltic States
1
China
26
China --
23
Cuba
1
Cuba --
1
Czechoslovakia
1
Czechoslovakia --
1
Developing countries
10
Developing countries --
4
East Asia
4
East Asia --
5
Eastern Europe
2
Egypt
1
Egypt --
1
Espionage, America --
1
Ethiopia
1
Ethiopia --
1
Europe
7
Europe --
9
Europe, Eastern
9
Europe, Eastern --
9
Former Soviet Republics
1
Former Soviet Republics --
1
Germany
2
Germany --
2
Great Britain
3
Great Britain --
3
India
6
India --
6
Iraq
1
Iraq --
1
Islamic countries
1
Islamic countries --
1
Israel
3
Israel --
3
Japan
5
Japan --
6
more ...