The storming of Redoubt No. 10 in the Siege of Yorktown during the American Revolutionary War prompted Great Britain's government to begin negotiations, resulting in the Treaty of Paris and Great Britain's recognition of the United States as an independent state.
A commissioned officer (left) and a non-commissioned officer of the British Army prepare for a mission in Afghanistan.
General Andrew Jackson standing on the parapet of his makeshift defenses as his troops repulse attacking Highlanders during the defense of New Orleans, the final major and most one-sided battle of the War of 1812
An Indonesian army officer serving as a ceremonial field commander
The Battle of Gettysburg, the turning point of the American Civil War
The Royal Navy officer training academy Britannia Royal Naval College at Dartmouth
Army soldiers in 1890
Newly commissioned U.S. Navy and Marine Corps officers celebrate their new positions by throwing their midshipmen covers into the air as part of the U.S. Naval Academy class of 2005 graduation and commissioning ceremony.
U.S. Army troops assaulting a German bunker in France, c. 1918
A platoon from the Australian 29th Battalion being addressed by their officer commanding in August 1918
U.S. soldiers hunting for Japanese infiltrators during the Bougainville Campaign
An officer of the People's Liberation Army.
U.S. Army soldiers observing an atomic bomb test of Operation Buster-Jangle at the Nevada Test Site during the Korean War
US tanks and Soviet tanks at Checkpoint Charlie, 1961
A U.S. Army infantry patrol moving up to assault the last North Vietnamese Army position at Dak To, South Vietnam during Operation Hawthorne
U.S. Army soldiers preparing to take La Comandancia in the El Chorrillo neighborhood of Panama City during Operation Just Cause
M1 Abrams tanks moving out before the Battle of Al Busayyah during the Gulf War
Iraqi tanks destroyed by Task Force 1-41 Infantry during the Gulf War, February 1991
U.S. Army Rangers taking part in a raid during an operation in Nahr-e Saraj, Afghanistan
U.S. Army soldiers with the 2nd Battalion, 327th Infantry Regiment, 101st Airborne Division returning fire during a firefight with Taliban forces in Barawala Kalay Valley in Kunar province, Afghanistan, March 2011
Organization of the United States Army within the Department of Defense
U.S. Army organization chart
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U.S. Army soldiers of the 1st Battalion, 175th Infantry Regiment, Maryland Army National Guard conducting an urban cordon and search exercise as part of the army readiness and training evaluation program in the mock city of Balad at Fort Dix, New Jersey
U.S. soldiers from the 6th Infantry Regiment taking up positions on a street corner during a foot patrol in Ramadi, Iraq
The 1st Cavalry Division's combat aviation brigade performing a mock charge with the horse detachment
U.S. Army Special Forces soldiers from the 3rd Special Forces Group patrolling a field in the Gulistan district of Farah, Afghanistan
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U.S. Army Rangers practicing fast roping techniques from an MH-47 during an exercise at Fort Bragg
A trainer with Company A, 1st Battalion 502nd Infantry Regiment, Task Force Strike, 101st Airborne Division assisting Iraqi army ranger students during a room clearing drill at Camp Taji, Iraq on 18 July 2016
U.S. Army soldiers familiarizing with the latest INSAS 1B1 during exercise Yudh Abhyas 2015
A Lockheed Martin Terminal High Altitude Area Defense (THAAD) system used for ballistic missile protection
A U.S. soldier on patrol in Iraq with the support of a Humvee vehicle
3rd Infantry Division soldiers manning an M1A1 Abrams in Iraq
The 2020 Army Greens uniform
An element of the 18th Infantry Regiment, wearing ASUs, representing the United States at the 2010 Victory Day commemoration in Moscow
The Ranger Honor Platoon marching in their tan berets and former service uniform

The U.S. Army is headed by a civilian senior appointed civil servant, the secretary of the Army (SECARMY) and by a chief military officer, the chief of staff of the Army (CSA) who is also a member of the Joint Chiefs of Staff.

- United States Army

United States Military Academy (USMA) (commissions 2nd lieutenants in the U.S. Army)

- Officer (armed forces)
The storming of Redoubt No. 10 in the Siege of Yorktown during the American Revolutionary War prompted Great Britain's government to begin negotiations, resulting in the Treaty of Paris and Great Britain's recognition of the United States as an independent state.

6 related topics

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Emblem of the United States Marine Corps

United States Marine Corps

Maritime land force service branch of the United States Armed Forces responsible for conducting expeditionary and amphibious operations through combined arms, implementing its own infantry, artillery, aerial, and special operations forces.

Maritime land force service branch of the United States Armed Forces responsible for conducting expeditionary and amphibious operations through combined arms, implementing its own infantry, artillery, aerial, and special operations forces.

Emblem of the United States Marine Corps
U.S. Marines from the 31st Marine Expeditionary Unit training
Marines from the 15th Marine Expeditionary Unit depart USS Tarawa (LHA-1), using both a Landing Craft Utility and CH-53E "Super Stallion" helicopters, during amphibious operations in Kuwait, 2003.
Maj. Samuel Nicholas, first Commandant of the Marine Corps, was nominated to lead the Continental Marines by John Adams in November 1775.
British and U.S. troops garrisoned aboard Hornet and Penguin exchanging small arms musket fire with Tristan da Cuna in the background during the final engagement between British and U.S. forces in the War of 1812
The Final Stand at Bladensburg, Maryland, 24 August 1814
Five USMC privates with fixed bayonets, and their NCO with his sword at the Washington Navy Yard, 1864
Georges Scott, American Marines in Belleau Wood, 1918
Former French Foreign Legion Lieutenant, and U.S. Marine Corps officer Peter J. Ortiz, who served in the European theater, often behind enemy lines
Photograph of the Marine Corps War Memorial, which depicts the second U.S. flag-raising atop Mount Suribachi, on Iwo Jima. The memorial is modeled on Joe Rosenthal's famous Raising the Flag on Iwo Jima.
F4U Corsairs providing close air support to Marines of the 1st Marine Division fighting Chinese forces in North Korea, December 1950
U.S. Marines of "G" Company, 2nd Battalion, 7th Marines in action during Operation Allen Brook in South Vietnam, 1968
Beirut Memorial at Marine Corps Base Camp Lejeune
U.S. Marines from 1st Battalion, 7th Marines entering a palace in Baghdad in 2003
U.S. Marines dismounting from an Assault Amphibious Vehicle in Djibouti
Organization of the United States Marine Corps
Marine Raiders conducting CQB training
Opha Johnson (far right) in 1946, with Katherine Towle (far left). They are looking at Opha Johnson's uniform being worn by PFC Muriel Albert.
Two of the first female graduates of the School of Infantry-East's Infantry Training Battalion course, 2013
Marine recruits at Marine Corps Recruit Depot San Diego
U.S. Marines in training
An illustration of U.S. Marines in various uniform setups. From left to right: A U.S. Marine in a Marine Corps Combat Utility Uniform with full combat load circa 2003, a U.S. Marine in a (full) blue dress uniform, a U.S. Marine officer in a service uniform, and a U.S. Marine general in an evening dress uniform.
The Eagle, Globe and Anchor along with the U.S. flag, the Marine Corps flag and the Commandant's flag
A recruiting poster making use of the "Teufel Hunden" [sic] nickname
Marines training in martial arts
Marines firing MEU(SOC) pistols while garrisoned aboard a ship
Marine Amphibious Assault Vehicles emerge from the surf onto the sand of Freshwater Beach, Australia
Marine parachutists jumping from an MV-22 Osprey at 10,000 feet
A Marine Corps F-35B, the vertical-landing version of the F-35 Lightning II multirole fighter landing aboard USS Wasp (LHD-1)
Assault Amphibious Vehicles approaching the well deck of USS Bonhomme Richard (LHD-6)
A Marine and sailor training with rifles in Iraq
A soldier from the 1st Infantry Regiment provides security for a joint Army-Marine patrol in Rawa in 2006. The shoulder sleeve insignia has the logo of the 2nd Marine Division.
Marines unloading CH-46 Sea Knight helicopters from an Air Force C-5 Galaxy

Development of tactics, technique, and equipment used by amphibious landing forces in coordination with the Army and Air Force; and

As in the rest of the United States Armed Forces (excluding the Air Force and Space Force, which do not currently appoint warrant officers), Marine Corps ranks fall into one of three categories: commissioned officer, warrant officer, and enlisted, in decreasing order of authority.

The Joint Chiefs of Staff in December 2020.

United States Armed Forces

The United States Armed Forces are the military forces of the United States.

The United States Armed Forces are the military forces of the United States.

The Joint Chiefs of Staff in December 2020.
Organization of the military services and military departments within the Department of Defense
Logo of the United States Army
U.S. Army Soldiers with 2nd Battalion, 327th Infantry Regiment, 101st Airborne Division return fire during a firefight with Taliban forces in Barawala Kalay Valley in Kunar province, Afghanistan on 31 March 2011.
U.S. Army M1A2 Abrams tanks from the 3rd Armored Cavalry Regiment maneuver in the streets as they conduct a combat patrol in the city of Tall Afar, Iraq, on Feb. 3, 2005.
Eagle, Globe, and Anchor
U.S. Marines with India Company, Battalion Landing Team, 3rd Battalion, 2nd Marine Regiment, 22nd Marine Expeditionary Unit run on the beach during an amphibious assault demonstration.
A U.S. Marine Corps MV-22 Osprey tiltrotor aircraft attached to VMX-22 prepares to land on the amphibious assault ship USS America (LHA-6) in the Pacific Ocean.
Logo of the United States Navy
USS John C. Stennis (CVN-74) and Carrier Strike Group 3 underway with Republic of Korea Navy ships.
USS Nebraska (SSBN-739), an 
 ballistic missile submarine underway in the Atlantic Ocean.
United States Air Force Symbol
F-22A Raptors in flight.
U.S. Air Force B-2A Spirit stealth bombers flying with Royal Air Force F-35B Lightning II stealth fighters.
Space Force Delta
The Sodium Guidestar at the Directed Energy Directorate's Starfire Optical Range for real-time, high-fidelity tracking and imaging of satellites.
Boeing X-37B spaceplane after deorbiting and landing.
Service mark of the United States Coast Guard
USCGC Hamilton and TCG Turgutries in the Black Sea, April 30, 2021.
Coast Guard Reserve Port Security boat on patrol
Unified combatant commands areas of responsibility
A pie chart showing global military expenditures by country for 2019, in US$ billions, according to SIPRI
Sergeant Leigh Ann Hester, awarded the Silver Star for direct combat
ADM Linda L. Fagan June 2021.

The armed forces consists of six service branches: the Army, Marine Corps, Navy, Air Force, Space Force, and Coast Guard.

As in most militaries, members of the U.S. Armed Forces hold a rank, either that of officer, warrant officer or enlisted, to determine seniority and eligibility for promotion.

A sergeant of the Coldstream Guards addressing through the ranks during the rehearsal for the Trooping the Colour ceremony.

Non-commissioned officer

Military officer who has not pursued a commission.

Military officer who has not pursued a commission.

A sergeant of the Coldstream Guards addressing through the ranks during the rehearsal for the Trooping the Colour ceremony.
Sergeant, Royal Artillery, on the esplanade of Edinburgh Castle, firing the one o'clock gun
A First Sergeant with the 55th Signal Company (Combat Camera) gets his soldiers ready for a uniform inspection

(Non-officers, which includes most or all enlisted personnel, are of lower rank than any officer.) In contrast, commissioned officers usually enter directly from a military academy, officer candidate school (OCS), or officer training school (OTS) after receiving a post-secondary degree.

In the Army, Air Force, and Marine Corps, all ranks of sergeant are termed NCOs, as are corporals in the Army and Marine Corps.

Uniformed services of the United States

The United States has eight 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 U.S. Code.

1) United States Army

The original Officer Candidate School logo,"the OCS road wheel"

Officer Candidate School (United States Army)

The original Officer Candidate School logo,"the OCS road wheel"
The 11th Infantry Regiment's distinctive unit insignia currently worn by the cadre and students of the U.S. Army Officer Candidate School
Signal Corps Graduating Class, December 1942, Fort Monmouth.
Graduating class of September 1944, SWPA OCS at Camp Columbia, Australia, showing an integrated population.
1st Officer Candidate Battalion, 2nd Student Regiment
OCS Candidates preparing for a mission on a "terrain model".

The United States Army's Officer Candidate School (OCS) is an officer candidate school located at Fort Benning, Georgia, that trains, assesses, and evaluates potential commissioned officers of the U.S. Army, U.S. Army Reserve, and Army National Guard.

Canadian commission of a naval (acting sub-lieutenant) male (indicated in French) officer

Direct commission officer

United States uniformed officer who has received an appointed commission without the typical prerequisites for achieving a commission, such as attending a four-year service academy, a four-year or two-year college ROTC program, or one of the officer candidate school or officer training school programs, the latter OCS/OTS programs typically slightly over three months in length.

United States uniformed officer who has received an appointed commission without the typical prerequisites for achieving a commission, such as attending a four-year service academy, a four-year or two-year college ROTC program, or one of the officer candidate school or officer training school programs, the latter OCS/OTS programs typically slightly over three months in length.

Canadian commission of a naval (acting sub-lieutenant) male (indicated in French) officer

Active United States Army direct commissions are available in the medical, legal, chaplain corps, and cyber.

Prior-Trained Military Officer