Geography
United States
7,968 results
Soviet Union
170 results
Japan
151 results
China
126 results
Europe
80 results
Russia (Federation)
59 results
Mexico
53 results
Developing countries
43 results
Canada
40 results
Iraq
39 results
Former Soviet republics
36 results
Israel
32 results
Iran
28 results
Middle East
28 results
European Economic Community countries
26 results
South Africa
24 results
Taiwan
24 results
Europe, Eastern
22 results
Nicaragua
22 results
Alaska
21 results
Cuba
21 results
El Salvador
21 results
Bosnia and Herzegovina
19 results
North America
18 results
Africa
17 results
Bosnia and Hercegovina
17 results
Vietnam
17 results
Washington (D.C.)
17 results
Yugoslavia
17 results
California
16 results
Latin America
16 results
Lebanon
16 results
Haiti
15 results
Korea (South)
15 results
Caribbean Area
14 results
Central America
14 results
Great Britain
14 results
Asia
13 results
Germany
13 results
Persian Gulf Region
13 results
Russia
13 results
Afghanistan
12 results
India
12 results
Pakistan
12 results
Korea (North)
11 results
Poland
11 results
Saudi Arabia
11 results
Somalia
11 results
Arctic National Wildlife Refuge (Alaska)
10 results
Cambodia
10 results
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