Region
Afghanistan --
1
China
1
China --
2
Developing countries
1
Developing countries --
1
El Salvador
1
El-Salvador --
1
El-Savador --
1
Guatemala
1
Guatemala --
1
Iraq
1
Iraq --
1
Israel --
2
Japan
1
Japan --
1
Japan. Rikugan. Kantogun. Butai, Dai 731 --
1
Lebanon
1
Lebanon --
1
Manchuria
1
Manchuria (China) --
1
Middle East
1
Middle East --
1
Nigeria
1
Nigeria --
1
Nigeria, Eastern
1
Palau
1
Palau --
1
Palestine
2
Palestine --
1
Panama
1
Panama --
1
Philippines
1
Philippines --
1
Soviet Union
1
Soviet Union --
2
United States
United States --
United States. Congress. Senate --
1
Vietnam
2
Vietnam --
3
Zaire
1
Zaire --
1