Region
United States
714
Iraq
11
Afghanistan
9
Foreign countries
6
Iran
6
Mexican-American Border Region
5
Washington (D.C.)
5
Pakistan
4
Canada
3
Gaza Strip
3
Guam
3
Gulf Coast (U.S.)
3
Louisiana
3
New Orleans
3
New York
3
New York (State)
3
West Bank
3
Cuba
2
Gulf States
2
Libby
2
Libby (Mont.)
2
Mexico
2
Montana
2
Nevada
2
North Carolina
2
Aberdeen Proving Ground (Md.)
1
Albania
1
America
1
Appalachian Region
1
Arizona
1
Avery County
1
California
1
Cannon Air Force Base (N.M.)
1
Caribbean Area
1
Central Valley
1
Chesapeake Bay (Md. and Va.)
1
Chesapeake Bay Watershed
1
Cheyenne Mountain
1
Cheyenne Mountain (Colo.)
1
China
1
Colorado
1
Croatia
1
Developing countries
1
Florida
1
Fort Bragg
1
Fort Monmouth
1
Fort Monmouth (N.J.)
1
Gaza
1
Germany
1
Great Basin National Park
1
more ...