Airports: 14,459 (1998 est.)
Airports—with paved runways:
total: 5,167
over 3,047 m: 180
2,438 to 3,047 m: 219
1,524 to 2,437 m: 1,294
914 to 1,523 m: 2,447
under 914 m: 1,027 (1998 est.)
Airports—with unpaved runways:
total: 9,292
over 3,047 m: 1
2,438 to 3,047 m: 6
1,524 to 2,437 m: 156
914 to 1,523 m: 1,647
under 914 m: 7,482 (1998 est.)
Heliports: 122 (1998 est.)
Military
Military branches: Department of the Army, Department of the Navy (includes Marine Corps), Department of the Air Force note: the Coast Guard falls under the Department of Transportation, but in wartime reports to the Department of the Navy
Military manpower—military age: 18 years of age
Military manpower—fit for military service: males age 15-49: NA
Military expenditures—dollar figure: $267.2 billion (1997 est.)
Military expenditures—percent of GDP: 3.4% (1997 est.)