GRT/14,630,116 DWT
by type: barge carrier 8, bulk 69, cargo 75, chemical tanker 12,
combination bulk 2, combination ore/oil 1, container 100,
multi-functional large load carrier 3, passenger 12, passenger/cargo
2, petroleum tanker 81, refrigerated cargo 3, roll on/roll off 83,
short-sea/passenger 3, vehicle carrier 12
foreign-owned: Australia 2, Canada 7, Denmark 17, Malaysia 1,
Netherlands 1, Norway 6, Singapore 3, United Kingdom 5
registered in other countries: 670 (2004 est.)

Airports:
14,807 (2003 est.)

Airports - with paved runways:
total: 5,128
over 3,047 m: 188
2,438 to 3,047 m: 221
914 to 1,523 m: 2,383
under 914 m: 961 (2004 est.)
1,524 to 2,437 m: 1,375

Airports - with unpaved runways:
total: 9,729
under 914 m: 7,843 (2004 est.)
over 3,047 m: 1
2,438 to 3,047 m: 7
914 to 1,523 m: 1,718
1,524 to 2,437 m: 160

Heliports:
155 (2003 est.)

Military United States

Military branches:
Army, Navy and Marine Corps, Air Force, and Coast Guard (Coast
Guard administered in peacetime by the Department of Homeland
Security, but in wartime reports to the Department of the Navy)

Military manpower - military age and obligation:
18 years of age (2004 est.)

Military manpower - availability:
males age 15-49: 73,597,731 (2004 est.)

Military manpower - fit for military service:
NA (2004 est.)

Military manpower - reaching military age annually:
males: 2,124,164 (2004 est.)

Military expenditures - dollar figure:
$370.7 billion (FY04 est.) (March 2003)

Military expenditures - percent of GDP:
3.3% (FY03 est.) (February 2004)

Transnational Issues United States

Disputes - international:
Prolonged drought, population growth, and outmoded practices and
infrastructure in the border region has strained water-sharing
arrangements with Mexico; undocumented nationals from Mexico and
Central America continue to enter the United States illegally; 1990
Maritime Boundary Agreement in the Bering Sea still awaits Russian
Duma ratification; managed maritime boundary disputes with Canada at
Dixon Entrance, Beaufort Sea, Strait of Juan de Fuca, and around the
disputed Machias Seal Island and North Rock; The Bahamas have not
been able to agree on a maritime boundary; US Naval Base at
Guantanamo Bay is leased from Cuba and only mutual agreement or US
abandonment of the area can terminate the lease; Haiti claims
US-adminis