Region
Africa
1
Alabama
1
American Samoa
3
Arctic regions
1
Arizona
2
Beaver County
1
California
6
Canada
1
Centennial
2
Colorado
3
Cove Point
1
Crow Creek Indian Reservation (S.D.)
1
Crow Creek Sioux Tribe of the Crow Creek Reservation, South Dakota
1
Estados Unidos
1
Europe
3
Florida
4
Fort Dix (N.J.)
1
Georgia
1
Government policy
1
Great Britain
1
Guam
1
Gulf States
2
Illinois
3
Iraq
5
Ireland
1
Jacksonville
2
Kansas
2
Kentucky
3
Maryland
1
Mexican-American Border Region
8
Mexico
17
Mexico, Gulf of
1
Michigan
1
Middle West
1
Missouri
2
Nevada
3
New Jersey
1
New York
4
New York (State)
7
North America
1
Northeast Passage
1
Northern Ireland
1
Northern Mariana Islands
2
Oregon
1
Outer space
1
Pennsylvania
3
Puerto Rico
2
Rhode Island
1
Russia (Federation)
1
Selfridge Air National Guard Base (Mich.)
1
more ...