An opposing force is a military unit tasked with representing an enemy, usually for training purposes in war game scenarios. The related concept of aggressor squadron is used by some air forces. The United States maintains the Fort Irwin National Training Center with the 11th Armored Cavalry Regiment serving in the OPFOR role. Fort Polk's Joint Readiness Training Center (JRTC)is another major training site typically reserved for light infantry units, and the OPFOR are the 1st of the 509th Airborne Infantry Regiment. The Army's Joint Maneuver Readiness Center has the 1st of the 4th Infantry Regiment as their OPFOR. Other major units include the First United States Army which consists of 16 training brigades that often also serve as OPFOR.
Fort Polk is a United States Army installation located in Vernon Parish, approximately ten miles (15 km) east of Leesville, Louisiana, and thirty miles (50 km) north of DeRidder in Beauregard Parish, Louisiana.
The Japan Ground Self-Defense Force, JGSDF, also referred to as the Japanese Army, is the land warfare branch of the Japan Self-Defense Forces. Created on July 1, 1954, it is the largest of the three service branches.
The Georgia National Guard is the National Guard of the U.S. state of Georgia, and consists of the Georgia Army National Guard and the Georgia Air National Guard. The Constitution of the United States specifically charges the National Guard with dual federal and state missions. The state functions range from limited actions during non-emergency situations to full scale law enforcement of martial law when local law enforcement officials can no longer maintain civil control.
The reorganization plan of the United States Army is a current modernization (2017–2028) and reorganization (2006–2016) plan of the United States Army that was implemented (2006–2016) under the direction of Brigade Modernization Command. This effort formally began in 2006 when General Peter Schoomaker, was given the support to move the Army from its Cold War divisional orientation to a full-spectrum capability with fully manned, equipped and trained brigades; this effort was completed by the end of 2016. It has been the most comprehensive reorganization since World War II and included modular combat brigades, support brigades, and command headquarters, as well as rebalancing the active and reserve components. The plan was first proposed by the Army's 34th Chief of Staff, Eric Shinseki, in 1999, but was bitterly opposed internally by the Army.
1 German-Netherlands Corps (1GNC) is a multinational formation consisting of units from both the Royal Netherlands Army and German Army. The corps' headquarters also takes part in NATO Response Force readiness rotations. It is situated in Münster, formerly the headquarters of the German Army's I. Corps out of which 1 German-Netherlands Corps evolved. The corps has national and multinational operational responsibilities.
The 194th Engineer Brigade is a combat engineer brigade of the United States Army based at Jackson, Tennessee. It is a part of the Tennessee Army National Guard.
The 4th Brigade Combat Team (Airborne), 25th Infantry Division is an airborne infantry brigade combat team (IBCT) of the United States Army. The unit is stationed at Joint Base Elmendorf-Richardson in Anchorage, Alaska and is the only airborne brigade combat team in the Pacific Theater. It is also the newest airborne IBCT and one of only five in the United States Army; the others are the three IBCTs of the 82nd Airborne Division and the 173rd Airborne Brigade.
The 164th Air Defense Artillery Brigade is an air defense artillery brigade of the United States Army as part of the Florida Army National Guard.
The 143rd Sustainment Command (Expeditionary)(formerly: 143rd Transportation Command), is one of seven general officer sustainment commands in the United States Army Reserve. It has command and control of more than 10,000 Army Reserve Soldiers throughout the southeastern United States in Alabama, Florida, Georgia, Louisiana, North Carolina, South Carolina, Tennessee, Arkansas and Mississippi. It is made up of more than 100 Army Reserve units whose missions are diverse and logistical in nature. The mission of the 143rd ESC is to provide command and control of sustainment forces and to conduct sustainment, deployment, redeployment and retrograde operations in support of U.S. and multinational forces. The mission of the 143rd when not deployed is to ensure readiness of the soldiers under its command and control.
The U.S. Army Joint Modernization Command, or JMC, based in Fort Bliss, Texas, gains insights from "Fight Tonight" units about future ways of fighting, future technology, and force structure during realistic live, constructive, and/or simulated training exercises. Joint Modernization Command is subordinate to the Army Futures & Concepts Center in Joint Base Langley-Eustis, Virginia; both report to the U.S. Army's newest Four-Star Command, the Army Futures Command (AFC) based in Austin, Texas.
The 3rd Squadron (R&S), 108th Cavalry Regiment was the reconnaissance and surveillance element of the 560th Battlefield Surveillance Brigade of the Georgia Army National Guard. The squadron was headquartered in Atlanta, Georgia. Nicknamed Renegades, it consisted of:
The 71st Expeditionary Military Intelligence Brigade (EMIB) is a unit of the Texas Army National Guard.
Mission Command Training Program', based at Fort Leavenworth, Kansas, is the U.S. Army's only worldwide deployable Combat Training Center. MCTP provides full spectrum operations training support for senior commanders and their staffs so they can be successful in any mission in any operational environment. Its Senior Mentors counsel and offer their experience to Army senior commanders, subordinate commanders and staff. Additionally, MCTP's professional observer-trainers assist units with objective feedback and suggestions for improvement.
The 221st Military Intelligence Battalion, based at the Gillem Enclave in Forest Park, Georgia, is a major battalion in the 560th Battlefield Surveillance Brigade in the Army National Guard
The 525th Expeditionary Military Intelligence Brigade (Expeditionary) is a unit of the United States Army specializing in the acquisition and analysis of information with potential military value. On 28 October 2014, the unit was reflagged from the "525th Battlefield Surveillance Brigade" to an expeditionary military intelligence brigade, the first of its kind.
Military exercises are conducted by the Pakistan Armed Forces to increase combat readiness, and to identify problems in logistics, training, and current military doctrine. They also test the ability of units to work together. Lastly, they act as a visible expression of military might, which acts as a deterrent to potential enemy action. An important component of each exercise is the after-action assessment. Since 1989 the four branches services have increasingly begun coordinated exercises.
Saber Strike is an annual international exercise held since 2010 by the United States Army Europe (USAREUR) focused on the Baltic States. The exercise spans multiple locations in Lithuania, Latvia and Estonia and involves approximately 2,000 troops from 14 countries.
Orient Shield is an annual training exercise executed in Japan between the Japanese Ground Self Defense Forces (JGSDF) and United States Army. Since 1985, it has focused on development and refinement of systems and tactics in order to enhance bilateral tactical planning, coordination, and interoperability. The exercise is designed to enhance bilateral combat effectiveness at the battalion and brigade levels while strengthening military-to-military relationships and demonstrating American commitment to support regional security interests. Rotating between JGSDF divisions of the five Regional Armies, Orient Shield leverages the unique capabilities of the training units to provide for ever-increasing tactical complexity and realism. The ongoing tension around North Korea's nuclear program has added an additional layer of importance to the annual exercise.
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United States Army 
United States Army National Guard 
