United States Uniformed Services

United States Uniformed Services
The United States Joint Service Color Guard in October 2001, on parade at Fort Myer in Arlington County, Virginia
Service branches	United States Army  United States Marine Corps  United States Navy  United States Air Force United States Coast Guard USPHS Commissioned Corps NOAA Commissioned Officer Corps
Leadership
President	President Donald Trump
Federal department heads	Secretary James Mattis (DoD) Secretary Kirstjen Nielsen (DHS) Secretary Alex Azar (HHS) Secretary Wilbur Ross (DOC)
Manpower
Military age	17–45 years old at joining
Available for military service	72,715,332 males, age 18–49 (2008 est.), 71,638,785 females, age 18–49 (2008 est.)
Fit for military service	59,413,358 males, age 18–49 (2008 est.), 59,187,183 females, age 18–49 (2008 est.)
Reaching military age annually	2,186,440 males (2008 est.), 2,079,688 females (2008 est.)
Active personnel	1,473,900 (ranked 2nd)
Reserve personnel	1,458,500
Expenditures
Budget	$597.5 billion (FY2015) (ranked 1st)
Percent of GDP	3.3% (2015 est.)
Related articles
History	American Revolutionary War Early national period Continental expansion American Civil War Post-Civil War era World War I (1917–1918) World War II (1941–1945) Cold War (1945–1991) Post–Cold War era (1991–2001) War on Terrorism (2001–present)
Ranks	Army officer Army warrant officer Army enlisted Marine Corps officer Marine Corps warrant officer Marine Corps enlisted Navy officer Navy warrant officer Navy enlisted Air Force officer Air Force enlisted Coast Guard officer Coast Guard warrant officer Coast Guard enlisted Public Health Service officer NOAA Corps officer

The United States of America has seven federal uniformed services that commission officers as defined by Title 10 and subsequently structured and organized by Title 10, Title 14, Title 32 and Title 42 of the United States Code.

The seven uniformed services are, in order of precedence:

Each of the uniformed services is administratively headed by a federal executive department and its corresponding civilian Cabinet leader.

The order of precedence within the U.S. Department of Defense is set by DOD Directive 1005.8 and is not dependent on the date of creation by the U.S. Congress.

The U.S. Coast Guard was a part of the U.S. Department of Transportation from 1967 to 2002. Prior to 1967, it was a part of the U.S. Department of the Treasury. During war time, the USCG can be transferred to the DoD under the Department of the Navy.

The NOAA Corps was created as the United States Coast and Geodetic Survey Corps, a component of the United States Coast and Geodetic Survey, on 22 May 1917. It was removed from the Coast and Geodetic Survey and became a component of the Environmental Science Services Administration (ESSA) as the United States Environmental Science Services Administration Commissioned Corps (ESSA Corps) upon the establishment of ESSA on 13 July 1965. The ESSA Corps became the NOAA Corps as a component of NOAA when ESSA was abolished and NOAA simultaneously was created on 3 October 1970. Under all three names, the Corps has been an element of the Department of Commerce throughout its existence.