Geography
United States
8,261 results
Soviet Union
175 results
Japan
148 results
China
128 results
Europe
87 results
Russia (Federation)
59 results
Mexico
52 results
Developing countries
43 results
Iraq
43 results
Canada
39 results
Former Soviet republics
36 results
Israel
31 results
Middle East
29 results
Iran
28 results
Cuba
25 results
European Economic Community countries
25 results
South Africa
24 results
Taiwan
24 results
Alaska
22 results
Europe, Eastern
22 results
Nicaragua
22 results
El Salvador
21 results
Bosnia and Herzegovina
19 results
Washington (D.C.)
19 results
North America
18 results
Vietnam
18 results
Africa
17 results
Bosnia and Hercegovina
17 results
Latin America
17 results
Yugoslavia
17 results
California
16 results
Lebanon
16 results
Haiti
15 results
Korea (South)
15 results
Caribbean Area
14 results
Asia
13 results
Central America
13 results
Germany
13 results
India
13 results
Pakistan
13 results
Persian Gulf Region
13 results
Russia
13 results
Afghanistan
12 results
Great Britain
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
more…