United States Army

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.
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
The Battle of Gettysburg, the turning point of the American Civil War
Army soldiers in 1890
U.S. Army troops assaulting a German bunker in France, c. 1918
U.S. soldiers hunting for Japanese infiltrators during the Bougainville Campaign
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

Land service branch of the United States Armed Forces.

- United States Army
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.

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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

Seminole

The Seminole are a Native American people who developed in Florida in the 18th century.

The Seminole are a Native American people who developed in Florida in the 18th century.

Coeehajo, Chief, 1837, Smithsonian American Art Museum
Sign at Bill Baggs Cape Florida State Park commemorating hundreds of enslaved African Americans who in the early 1820s escaped from this area to freedom in the Bahamas.
Seminole woman, painted by George Catlin, 1834
Seminole family of tribal elder, Cypress Tiger, at their camp near Kendall, Florida, 1916. Photo taken by botanist, John Kunkel Small
Seminole patchwork shawl made by Susie Cypress from Big Cypress Indian Reservation, ca. 1980s
Seminoles' Thanksgiving meal mid-1950s
A Seminole spearing a garfish from a dugout, Florida, 1930
Seminole clipper ship card

After the United States achieved independence, the U.S. Army and local militia groups made increasingly frequent incursions into Spanish Florida to recapture escaped slaves living among the Seminole.

South Vietnam

Country in Southeast Asia that existed from 1955 to 1975, the period when the southern portion of Vietnam was a member of the Western Bloc during part of the Cold War.

Country in Southeast Asia that existed from 1955 to 1975, the period when the southern portion of Vietnam was a member of the Western Bloc during part of the Cold War.

About 1 million North Vietnamese refugees left the newly created communist North Vietnam during Operation "Passage to Freedom" (October 1954).
US President Dwight D. Eisenhower and Secretary of State John Foster Dulles greet President Ngô Đình Diệm of South Vietnam in Washington, 8 May 1957.
A woman casting her ballot in the 1967 elections in the Republic of Vietnam
Radio Vietnam broadcast hours cards, denoting times and frequencies of radio broadcasts in 1960 and 1962. Address: 3 Phan Dinh Phung St., Saigon
Map of South Vietnam

Larger escalation of the insurgency occurred in 1965 with American intervention and the introduction of regular forces of Marines, followed by Army units to supplement the cadre of military advisors guiding the Southern armed forces.

Future Combat Systems logo

Future Combat Systems

Future Combat Systems logo
FCS timeline (click to view)
Manned Ground Vehicles family and common chassis
XM1203 Non-Line-of-Sight Cannon (NLOS-C) prototype in 2009

Future Combat Systems (FCS) was the United States Army's principal modernization program from 2003 to early 2009.

BCT Modernization logo

BCT Modernization

BCT Modernization logo

The Brigade combat team Modernization was the United States Army's principal modernization program for Brigade combat teams (BCTs) from 2009–10.

Colorado

State in the Mountain West subregion of the Western United States.

State in the Mountain West subregion of the Western United States.

Ruins of Cliff Palace at Mesa Verde National Park. Photo by Gustaf Nordenskiöld, 1891
Great Kiva at Chimney Rock in the San Juan Mountains of Southwestern Colorado. It is said to have been built by the Ancient Pueblo peoples.
The Spanish discovering the Colorado River, namesake of the state, in 1540, by Augusto Ferrer-Dalmau. García López de Cárdenas can be seen overlooking the Grand Canyon.
Map of the Mexican Cession, with the white representing the territory the United States received from Mexico (plus land ceded to the Republic of Texas) after the Mexican–American War. Well over half of Colorado was received during this treaty.
The Anasazi Heritage Center in Dolores
The territories of New Mexico, Utah, Kansas, and Nebraska before the creation of the Territory of Colorado
Mount of the Holy Cross, photographed by William Henry Jackson in 1874
The Georgetown Loop of the Colorado Central Railroad as photographed by William Henry Jackson in 1899
Three 10th Mountain Division skitroopers above Camp Hale in February 1944.
The arid high plains in Southeastern Colorado
Front Range Peaks west of Denver
Tenmile Range and Dillon Reservoir near Breckenridge
Grays Peak at 4352 m is the highest point on the Continental Divide in North America
The high desert lands that make up the San Luis Valley in Southern Colorado
Maroon Bells, at 14163 ft, is part of White River National Forest and a tourist destination
The Colorado National Monument near Grand Junction is made up of high desert canyons and sandstone rock formations
Köppen climate types of Colorado, using 1991-2020 climate normals.
Breckenridge naturalist Edwin Carter with a mounted gray wolf killed in the Colorado Rockies, ca. 1890–1900.
An enlargeable map of the 64 counties of the State of Colorado
An enlargeable map of the 17 core-based statistical areas of Colorado
Colorado population density map
Denver Energy Center lies in the Denver financial district along 17th Street, known as the Wall Street of the West
Corn growing in Larimer County
An oil well in western Colorado
History Colorado Center in Denver
Street art in Denver
The Colorado Rockies baseball club at Coors Field
Empower Field at Mile High in Denver, home field of the Denver Broncos and the Denver Outlaws
Ball Arena, home of the Denver Nuggets, the Colorado Avalanche, and the Colorado Mammoth
Dick's Sporting Goods Park, home of the Colorado Rapids
A Colorado state welcome sign
The main terminal of Denver International Airport evokes the peaks of the Front Range.
The westbound and eastbound California Zephyrs meet in the Glenwood Canyon.
Colorado Christian University
Colorado College
Colorado Mesa University
Colorado School of Mines
Colorado State University
Regis University
The United States Air Force Academy
The University of Colorado Boulder
The University of Denver
Fort Carson
Peterson Space Force Base
United States Air Force Academy
The Southern Ute Tribal Administration Building
The Ute Mountain Ute Tribal Office Complex
Lowry Pueblo in Canyons of the Ancients National Monument
Great Sand Dunes National Park and Preserve
Spruce Tree House in Mesa Verde National Park

In 1859, a U.S. Army topographic expedition led by Captain John Macomb located the confluence of the Green River with the Grand River in what is now Canyonlands National Park in Utah.

M1 Abrams tanks moving in formation during the Persian Gulf War

Battle of Medina Ridge

Tank battle fought on the 27 February 1991, during the Gulf War, between the U.S. 1st Armored Division and the 2nd Brigade of the Iraqi Republican Guard Medina Luminous Division outside Basra, Iraq.

Tank battle fought on the 27 February 1991, during the Gulf War, between the U.S. 1st Armored Division and the 2nd Brigade of the Iraqi Republican Guard Medina Luminous Division outside Basra, Iraq.

M1 Abrams tanks moving in formation during the Persian Gulf War

Thirty-eight of the Iraqi tanks were destroyed by U.S. Army AH-64 Apaches and U.S. Air Force A-10 Thunderbolt IIs.

Destroyed Iraqi Type 69 tank

Battle of 73 Easting

Fought on 26 February 1991, during the Gulf War, between Coalition armored forces and Iraqi armored forces (Republican Guard and Tawakalna Division).

Fought on 26 February 1991, during the Gulf War, between Coalition armored forces and Iraqi armored forces (Republican Guard and Tawakalna Division).

Destroyed Iraqi Type 69 tank
An Iraqi defensive position in Task Force 1-41 Infantry's sector of operations during the Battle of 73 Easting. The tops of Iraqi tanks can be seen as they sit in defensive entrenchments. More destroyed Iraqi armor sits in the distant background.
Iraqi T-62 knocked out by 3rd Armored Division fire
Wrecked Bradley IFV K-12 burns after being hit by Iraqi tank fire during the first stages of the battle
M1A1 Abrams Tanks from the 3rd Armored Division First Brigade along the Line of Departure
An Iraqi tank destroyed by Task Force 1-41 Infantry during a night combat operation during the Gulf war, February 1991.
4th Battalion of the 3rd Field Artillery Regiment, 2nd Armored Division(FWD) conducts artillery strikes on Iraqi positions during the 1st Gulf War. 4-3 FA was the primary fire support battalion for Task Force 1-41 during the 1st Gulf War, February 1991.
Destroyed Iraqi tanks burning at the Battle of Norfolk during the Gulf War, February 1991

The corps' main body consisted of the American 2nd Armored Division (Forward), 1st Armored Division (1st AD), 3rd Armored Division (3rd AD), 1st Infantry Division (1st ID), and the British 1st Armoured Division (1 AD).

DEVCOM’s distinctive unit insignia

United States Army Combat Capabilities Development Command

Subordinate command of the U.S. Army Futures Command.

Subordinate command of the U.S. Army Futures Command.

DEVCOM’s distinctive unit insignia
Army Futures Command shoulder sleeve insignia (left) and distinctive unit insignia (right)

RDECOM was tasked with "creating, integrating, and delivering technology-enabled solutions" to the U.S. Army.

An OH-58D Kiowa Warrior taking off from Forward Operation Base MacKenzie during the Iraq War in October 2004.

Bell OH-58 Kiowa

Family of single-engine, single-rotor, military helicopters used for observation, utility, and direct fire support.

Family of single-engine, single-rotor, military helicopters used for observation, utility, and direct fire support.

An OH-58D Kiowa Warrior taking off from Forward Operation Base MacKenzie during the Iraq War in October 2004.
YOH-4A LOH in flight
An OH-58D Kiowa Warrior takes off armed with an AGM-114 Hellfire and 7 Hydra 70 rockets.
OH-58D at Kandahar, 2011
Group of Kiowa Warriors covered by snow at Bagram Air Base, 2013
An OH-58 Kiowa
OH-58C of the National Test Pilot School. Note the flat windscreen and IR exhaust suppressors
OH-58D of 2nd Squadron, 6th Cavalry Regiment, landing on USS Lake Erie (CG-70)
OH-58F test aircraft in flight
OH-58X, a modified OH-58D prototype. Note nose, pitch link cover and engine cowl area.
An Austrian Armed Forces OH-58, during AirPower 2013
A Canadian Forces Kiowa with 444 Squadron, CFB Lahr, Germany
A United States Army Kiowa
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Bell Helicopter manufactured the OH-58 for the United States Army based on its Model 206A JetRanger helicopter.