Geography
United States
8,004 results
Soviet Union
167 results
Japan
145 results
China
128 results
Europe
82 results
Russia (Federation)
59 results
Mexico
53 results
Developing countries
43 results
Canada
40 results
Iraq
40 results
Former Soviet republics
36 results
Israel
30 results
Iran
28 results
Middle East
28 results
European Economic Community countries
25 results
Taiwan
24 results
Alaska
22 results
South Africa
22 results
Cuba
21 results
Europe, Eastern
21 results
Nicaragua
21 results
Vietnam
20 results
Bosnia and Herzegovina
19 results
El Salvador
19 results
Latin America
18 results
North America
18 results
Africa
17 results
Bosnia and Hercegovina
17 results
Washington (D.C.)
17 results
Yugoslavia
17 results
California
16 results
Haiti
15 results
Korea (South)
15 results
Caribbean Area
14 results
Germany
13 results
Lebanon
13 results
Pakistan
13 results
Persian Gulf Region
13 results
Russia
13 results
Afghanistan
12 results
Asia
12 results
Great Britain
12 results
India
12 results
Central America
11 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…