{| border="1" width="300" cellpadding="2" cellspacing="0" align="right" style="margin-left:1em"
|-----
! colspan="2" bgcolor="#8888dd" | United States Armed Forces
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| colspan="2" align="center" | Military manpower
|-----
| Military age
17–45 years old
|-----
| Availability || Males & Females ages 17–49:
109,305,756 (2005 est.).
|-----
| Citizenship
| Regular Army: No Citizenship Requirement For Enlisted Members / All Officers must be US Citizens. National Guard: Citizens Only.
|-----
| Reaching military age annually
| Males & Females: 4,180,074 (2005 est.)
|-----
| Total armed forces ||  2,685,713 (Ranked 2nd)
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| Active troops || 1,426,713 (Ranked 2nd)
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| Total troops || 2,685,713 (Ranked 7th)
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| colspan="2" align="center" | Military expenditures
|-----
| Dollar figure ||  $441.6 billion (Ranked 1st.)
|-----
| Percent of GDP || 3.7% (FY2006 est.) (Ranked 26th)
|-----
| Dollar Figure (per citizen)
$935.64($1470) (ranked 3rd)
|}
The military of the United States, officially known as the United States Armed Forces, is made of:
 United States Army
 United States Navy
 United States Marine Corps
 United States Air Force
 United States Coast Guard
 United States Space Force

The President of the United States is the Commander-in-Chief of the Armed Forces.
All branches except the Coast Guard are part of the Department of Defense, which is controlled by the Secretary of Defense.  The Coast Guard is part of the Department of Homeland Security. The Marine Corps is part of the Navy.

About 1.4 million people are currently on active duty in the military with another 1,259,000 people on reserve (with 456,000 people in the Army and Air National Guard). There is currently no conscription. Women can serve in most combat positions, and in all non-combat military jobs. Because of war, some of these non-combat jobs actually see combat regularly.

Ranks 
All the branches of the US military have both Officers and Enlisted. Most Enlisted people with a rank of E-4 and above are called Non-commissioned Officers (NCOs); the exception is the Air Force where E-5 is considered the first NCO rank. Their usual duties are to supervise or make sure that common jobs are done properly every day. Most branches also includes Warrant Officers (Chief Warrant Officers in the Navy.) They are considered experts in their field, they are higher rank than other enlisted troops, but below officers. There are four ranks of Warrant Officers: WO-1 through WO-4 (CWO-1 to CWO-4)

Here are some common ranks for the US Army, Air Force and Marines. These branches of the military use different names for the enlisted ranks, but they all use the same for officers. The Navy and the Coast Guard have different ranks; for those see United States Navy.

Branches of the Military
As noted above there are several different branches of the US Military. Each Branch has a different function [Land; Sea or Air]
U.S. Army

References

Other websites 
 Official U.S. DOD site
 Global Security on U.S. Military Operations
 Today's Military website
 Largest Military Personnel Locator
 US Military ranks and rank insignia
 US Military Mottos

Branch links 
 U.S. Army
 U.S. Navy
 U.S. Air Force
 U.S. Marine Corps
 U.S. Coast Guard