A regiment is a military unit. Their role and size varies markedly, depending on the country and the arm of service.
A brigade is a major tactical military formation that is typically composed of three to six battalions plus supporting elements. It is roughly equivalent to an enlarged or reinforced regiment. Two or more brigades may constitute a division.
The units of the British Army are commanded by the Chief of the General Staff. This is broadly similar to the structures of the Royal Navy and Royal Air Force, in that the four-star (general-equivalent) commanders-in-chief have been eliminated since 2011 and service chiefs are given direct command of their respective services are responsible as Top Level Budget (TLB) holders. Army Headquarters is located in Andover, Hampshire. There is a Commander Field Army and a personnel and UK operations command, Home Command.
The 5th Infantry Division (Mechanized)—nicknamed the "Red Diamond", or the "Red Devils" —was an infantry division of the United States Army that served in World War I, World War II and the Vietnam War, and with NATO and the U.S. Army III Corps. It was disbanded and deactivated on 24 November 1992.
The brigade combat team (BCT) is the basic deployable unit of maneuver in the U.S. Army. A brigade combat team consists of one combat arms branch maneuver brigade, and its assigned support and fire units. A brigade is normally commanded by a colonel (O-6) although in some cases a brigadier general (O-7) may assume command. A brigade combat team contains combat support and combat service support units necessary to sustain its operations. BCTs contain organic artillery training and support, received from the parent division artillery (DIVARTY).
Marine Air-Ground Task Force is a term used by the United States Marine Corps to describe the principal organization for all missions across the range of military operations. MAGTFs are a balanced air-ground, combined arms task organization of Marine Corps forces under a single commander that is structured to accomplish a specific mission. The MAGTF was formalized by the publishing of Marine Corps Order 3120.3 in December 1963 "The Marine Corps in the National Defense, MCDP 1-0". It stated:
A regimental combat team (RCT) is a provisional major infantry unit of the United States Marine Corps to the present day and of the United States Army during World War II and the Korean War. It is formed by augmenting a regular infantry regiment with smaller tank, artillery, combat engineer, mechanized, cavalry, reconnaissance, signal corps, air defense, quartermaster, military police, medical, and other support units to enable it to be a self-supporting organization in the combat field.
The 157th Maneuver Enhancement Brigade, also known as the Iron Brigade, is based out of Milwaukee, Wisconsin. It was formerly known as the 57th Field Artillery Brigade, at which time its subordinate organizations included the 1st Battalion, 126th Field Artillery Regiment and the 1st Battalion, 121st Field Artillery Regiment from the Wisconsin Army National Guard, plus the 1st Battalion, 182nd Field Artillery Regiment of the Michigan Army National Guard. Not to be confused with the famous "Iron Brigade" of the Civil War, its nickname was traditionally given to crack artillery units in the Civil War. It was during World War I that the 57th Field Artillery Brigade earned its nickname as it spent many hours at the front and fired more artillery rounds than any brigade in the American Army.
Camp Speicher, officially known as the Tikrit Air Academy and formerly as FOB Speicher, COB Speicher, and Al Sahra Airfield is an air installation near Tikrit in northern Iraq. The installation is approximately 170 kilometers north of Baghdad and 11 kilometers west of the Tigris River. Prior to 2003, Al Sahra Airfield was the main base of the Iraqi Air Force Air Academy. The United States Army captured the base from the Iraqi Army during the Iraq War and used it as the headquarters of the United States Division–North. The airfield is served by two main runways measuring 9,600 feet (2,900 m) long with a shorter runway measuring 7,200-foot (2,200 m). The Americans named the airfield after Captain Michael Scott Speicher, a United States Navy pilot who was killed in action in Iraq during the 1991 Gulf War.
The Oregon Military Department is an agency of the government of the U.S. state of Oregon, which oversees the armed forces of the state of Oregon. Under the authority and direction of the governor as commander-in-chief, the agency is responsible for planning, establishing, and enforcing rules and procedures governing the administration, supply, and training of the Oregon National Guard, when not in the active service of the United States. The Department also maintains all state-owned or leased military facilities, including posts, camps, military reservations, and rifle ranges.
In United States Army units, a headquarters and headquarters company (HHC) is a company-sized military unit, found at the battalion level and higher. In identifying a specific headquarters unit, it is usually referred to by its abbreviation as an HHC. While a regular line company is formed of three or four platoons, an HHC is made up of the headquarters staff and headquarters support personnel of a battalion, brigade, division, or higher level unit. As these personnel do not fall inside one of the regular line companies of the battalion, brigade, or division, the HHC is the unit to which they are administratively assigned. The typical personnel strength of an average HHC is 80 to 110.
A special troops battalion (STB) is an organic unit of a modular brigade, division, corps or higher echelon United States Army organization. It may comprise companies from different branches of the army, but typically has a Headquarters and Headquarters Company (HHC) and Signal Network Company at a minimum.
A forward support battalion was an Army of Excellence combat service support unit designed to support a Brigade. In divisions, it was part of the Division Support Command (DISCOM).
The 15th Sustainment Brigade was a sustainment brigade of the United States Army based at Fort Bliss, Texas. It provided logistics support to other units of the United States Army, and was subordinate to the 13th Sustainment Command (Expeditionary). It previously had provided support to the 1st Cavalry Division, but now did so for the 1st Armored Division until 12 May 2015 when the 15th Sustainment Brigade became part of the 1st Armored Division and was renamed 1st Armored Division Sustainment Brigade.
The 1st Infantry Division Sustainment Brigade is a sustainment brigade of the United States Army based at Fort Riley, Kansas. It provides logistics support to the 1st Infantry Division.
The 45th Sustainment Brigade was a sustainment brigade of the United States Army based at Schofield Barracks, Hawaii. The 45th SB was directly subordinate to the 8th Theater Sustainment Command until 2015 when the Army aligned sustainment brigades to major divisions. The 45th SB was then re-designated to the 25th Sustainment Brigade, with the 25th Infantry Division obtaining complete administrative and operational control.
The Mechanized Brigade "Sassari" is a mechanized infantry brigade of the Italian Army, based on the island of Sardinia. Its core are three infantry regiments which distinguished themselves in combat during World War I. Carrying the name of the Sardinian city of Sassari the brigade's coat of arms is modeled after the city's coat of arms. The brigade is part of the Division "Acqui".
The 101st Division Sustainment Brigade is a sustainment brigade of the United States Army based at Fort Campbell providing logistical support to the 101st Airborne Division. Formerly a separate unit under the command of United States Army Forces Command, it became a division sustainment brigade in 2015 and adopted the wear of the division SSI.
United States Army Europe (USAREUR) is an Army Service Component Command (ASCC)/Theater Army responsible for directing United States Army operations throughout the U.S. European Command (EUCOM) Area of Responsibility (AOR). During the Cold War, it supervised ground formations primarily focused upon the Warsaw Pact to the east as part of the North Atlantic Treaty Organisation's (NATO) Central Army Group (CENTAG). Since 1989, it has greatly reduced its size, dispatched U.S. forces to Southwest Asia, Kosovo, the War on Terrorism and increased security cooperation with other NATO land forces.
7 South African Infantry Division was a formation of the South African Army, active from the 1960s to 1999.