Military ranks are a system of hierarchical relationships, within armed forces, police, intelligence agencies or other institutions organized along military lines. The military rank system defines dominance, authority, and responsibility in a military hierarchy. It incorporates the principles of exercising power and authority into the military chain of command—the succession of commanders superior to subordinates through which command is exercised. The military chain of command constructs an important component for organized collective action.
The United States Army Special Forces (SF), colloquially known as the "Green Berets" due to their distinctive service headgear, are a special operations force of the United States Army.
The 98th Infantry Division ("Iroquois") was a unit of the United States Army in the closing months of World War I and during World War II. The unit is now one of the U.S. Army Reserve's training divisions, officially known as the 98th Training Division. Its primary mission is to conduct Initial Entry Training (IET) for new soldiers. It is one of three training divisions subordinate to the 108th Training Command (IET) and handles command and control of units throughout the eastern United States and in Puerto Rico.
The 76th Infantry Division was a unit of the United States Army in World War I, World War II and the Cold War. The division was inactivated in 1996 and has been reconstituted as the 76th US Army Reserve Operational Response Command in 2013.
The Judge Advocate General's Corps of the United States Army, also known as the U.S. Army JAG Corps, is the legal arm of the United States Army. It is composed of Army officers who are also lawyers and who provide legal services to the Army at all levels of command, and also includes legal administrator warrant officers, paralegal noncommissioned officers and junior enlisted personnel, and civilian employees.
In the practice of international law, command responsibility is the legal doctrine of hierarchical accountability for war crimes, whereby a commanding officer (military) and a superior officer (civil) is legally responsible for the war crimes and the crimes against humanity committed by his subordinates; thus, a commanding officer always is accountable for the acts of commission and the acts of omission of his soldiers.
The United States Army Trial Defense Service is an independent Field Operating Agency within the U.S. Army Judge Advocate General's Corps and falls under the Commanding General of the U.S. Army Judge Advocate General's Legal Center and School. The TDS motto is "Defending Those Who Defend America."
The 335th Signal Command (Theater) is an operational and functional U.S. Army Reserve command of more than 4,000 Active and Reserve Soldiers, providing Signal and Cyber units in direct support of 3rd Army/USARCENT in Southwest Asia, Army Reserve exercises, and Homeland Defense missions throughout the United States.
The Combat Capabilities Development Command, is a subordinate command of the U.S. Army Futures Command. RDECOM was tasked with "creating, integrating, and delivering technology-enabled solutions" to the U.S. Army. It is headquartered at Aberdeen Proving Ground in Maryland.
The 220th Military Police Brigade is a former military police brigade of the United States Army, which was headquartered in Gaithersburg, Maryland. It was Reserve Component formation of the U.S. Army Reserve.
The structure of the United States Army is complex, and can be interpreted in several different ways: active/reserve, operational/administrative, and branches/functional areas.
The United States Army Recruiting Command (USAREC) is responsible for manning both the United States Army and the Army Reserve. Recruiting operations are conducted throughout the United States, U.S. territories, and at U.S. military facilities in Europe, Asia, and the Middle East. This process includes the recruiting, medical and psychological examination, induction, and administrative processing of potential service personnel.
The United States Army Military Intelligence Readiness Command was stood up as the first Army Reserve functional command in 2005. Headquartered at Fort Belvoir, Virginia, MIRC is composed mostly of reserve soldiers in units throughout the United States, and encompasses the bulk of Army Military Intelligence reserve units, consisting of over 40 strategic and tactical intelligence units throughout the United States. Specialized capabilities that MIRC provides include theater intelligence support, support to NSA and INSCOM, and strategic intelligence support to Combatant Commands and combat support agencies. MIRC is subordinate to United States Army Reserve Command. MIRC’s commander is Colonel Melissa K. Adamski, who departed the role of MIRC Training Support Command commander, 3 June 2023.
The United States Army Reserve Command (USARC) commands all United States Army Reserve units and is responsible for overseeing unit staffing, training, management and deployment. Approximately 205,000 Army Reserve soldiers are assigned to USARC. The major subordinate commands which report directly to USARC consist of operational commands, functional commands, support commands, and training commands. In turn, USARC itself reports to United States Army Forces Command (FORSCOM), where both are garrisoned in the same location at Fort Liberty, North Carolina.
311th Signal Command Theater is the designated signal command for the Army Service Component Commands within the Pacific and Korean theaters. The staff of 311th Signal Command consists of more than 3000 active-duty soldiers, U.S. Army Reserve soldiers and Army civilians. Headquartered at Fort Shafter, Hawaii, the 311th SC(T) and its subordinate units are stationed across 16 time zones, ranging from Alaska to Korea, and from Hawaii to California.
The Adjutant General's Corps, formerly the Adjutant General's Department, is a branch of the United States Army first established in 1775. This branch provides personnel service support by manning the force, providing human resources services, coordinating personnel support, Army band operations, and recruiting and retention. The objective of the Adjutant General Corps is to "maximize operational effectiveness of the total force by anticipating, manning, and sustaining military operations. HR support operations accomplish this by building, generating, and sustaining the force providing combatant commanders the required forces for missions and supporting leaders and Soldiers at all levels."
The 151st Theater Information Operations Group, or 151st TIOG, is an Information Operations formation of the United States Army Reserve, headquartered at Fort Totten, New York. Founded in 2009, the 151st TIOG is the only Theater Information Operations Group in the U.S. Army Reserve. It is composed mostly of Army Reserve Soldiers in two battalions based out of Parks Reserve Forces Training Area, Fort George G. Meade, and Fort Totten. The current commander is Colonel Marlene Markotan, who assumed command in July 2019.
The 353rd Civil Affairs Command organizes, trains, and equips assigned Civil Affairs forces to mobilize, deploy, and conduct civil military operations. On order, the 353rd Civil Affairs Command organizes, trains, and equips assigned Civil Affairs forces to mobilize, deploy, conduct civil military operations, and redeploy in order to support Geographic Combatant Commander mission requirements with focus on the US Africa and US European Command areas of responsibility.
United States of America 
United States Army 
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