Reconnaissance, surveillance, and target acquisition (RSTA) squadrons are a type of unit in the United States Army. These are cavalry squadrons (though in IBCTs they typically contain at least one dismounted infantry troop), and act at the squadron (battalion) level as a reconnaissance unit for their parent brigade combat teams. These RSTA squadrons continue on the Recondo legacy of the Vietnam era Long Range Reconnaissance Patrols (LRRP), however, compared to the LRRPs they are often assigned additional non-reconnaissance responsibilities such as battlespace ownership. As of 2025, RSTA squadrons in IBCTs are in the process of being deactivated; instead each infantry battalion will gain a Multipurpose Company (MPC) and the dismounted reconnaissance troop is replaced with a Multifunctional Reconnaissance Company (MFRCs) for providing brigade-level reconnaissance.
Additionally, RSTA is a doctrine that groups the tasks of reconnaissance, surveillance and target acquisition conducted by the Department of Defense (United States). RSTA supports military operations at a strategic (national defense policy), operational (theater level), or tactical (individual unit) level, either by dedicated RSTA forces or those which possess the capability.
The RSTA squadron As part of its modernization and reorganization plan, the US Army has transitioned to the use of a modular brigade combat team (BCT) scheme. For each of its three main types of BCTs, whether an infantry brigade combat team (IBCT), armored brigade combat team (ABCT), or Stryker brigade combat team (SBCT), there is a reconnaissance squadron which is tasked with performing reconnaissance and security missions for the BCT.FM 3–20.96 Reconnaissance and Cavalry Squadron. Department of the Army. May 2016. Ch. 1 Sec. 1 Related to these units were reconnaissance and surveillance squadrons, which operated as part of battlefield surveillance brigades; however since 2015 all BfSBs have been converted into expeditionary military intelligence brigades or inactivated.
The primary task of the RSTA squadron is to carry out reconnaissance and security missions for its parent BCT or for higher commands, whether as part of offensive or defensive operations. Reconnaissance missions can include area, route, zone, and reconnaissance-in-force. Security missions can include screening (whether stationary or mobile), guard, cover, area security and local security. When necessary, the squadron can be augmented with additional forces to help in carrying out its missions.
ABCT squadron The ABCT cavalry squadron is composed of a headquarters troop, two cavalry troops (transitioning to three cavalry troops), an armored company, and a forward support company attached from the brigade support battalion.FM 3–20.96 Reconnaissance and Cavalry Squadron. Department of the Army. May 2016. Ch. 1 Sec. 3 The headquarters troop includes a command group, the troop headquarters section, the squadron primary staff, a medical platoon, an attached fire support cell, and a tactical air control party. Total strength includes 149 personnel, two Bradley Fighting Vehicles, three M577A1 Command Post Carriers, two M577A1 Medical Treatment Vehicles, eight M113A3 Ambulances, fourteen HMMWVs, and six FMTVs, with appropriate equipment carried in additional trailers.The U.S. Military's Force Structure: A Primer. Congressional Budget Office. June 2016. Chapter 2 - Army Armored Brigade Combat Teams Each cavalry troop consists of a headquarters section, two scout platoons, and a mortar section. The headquarters section includes the troop commander, executive officer, first sergeant, unit supply, and attached fire support team and combat medics. Each scout platoon consists of three M3 Bradley vehicles (each carrying two scouts) and five HMMWVs equipped with long-range multisensor systems, with plans to transition each troop to have six M3 vehicles. The mortar section has two 120-mm mortars and a fire direction center. Total strength for each cavalry troop includes 93 personnel, seven Bradley vehicles, eleven HMMWVs, two M1064 mortar carriers, an M113 Armored Personnel Carrier, an M577A1 Command Post Carrier, and an FMTV. The armor company consists of a headquarters element and three tank platoons. The headquarters consists of two tanks commanded by the company commander and executive officer, with attached fire support team and combat medics. Total strength includes 62 personnel, fourteen M1 Abrams, an M577A1 Command Post Carrier, two HMMWVs and an FMTV. The ABCT Cavalry squadron can fight against comparable armor forces, including tanks and other armored fighting vehicles, in order to conduct its missions. However it has significant logistical and maintenance requirements and the use of different vehicle types creates a mix in survivability between platforms. The limited number of scout platoons reduces the size of the area the troop can operate in.
IBCT squadron The IBCT cavalry squadron includes a headquarters troop, two mounted cavalry troops, and a dismounted reconnaissance troop. A forward support company will also be attached from the brigade support battalion for sustainment purposes. In squadrons supporting an airborne brigade combat team, 100% of the RSTA soldiers are qualified paratroopers. The headquarters troop includes a command group, the troop headquarters section, the squadron primary staff, a medical platoon, an attached fire support cell, and a tactical air control party. Total strength includes 130 personnel, seventeen HMMWVs, ten M997 Ambulances, three M1117 armored security vehicles, and five FMTVs, with appropriate equipment carried in additional trailers.The U.S. Military's Force Structure: A Primer. Congressional Budget Office. June 2016. Chapter 2 - Army Infantry Brigade Combat Teams Each mounted cavalry troop consists of a headquarters section, three scout platoons and a mortar section. The headquarters section includes the troop commander, executive officer, first sergeant, unit supply, and attached fire support team and combat medics. Each scout platoon has two HMMWVs, each with a crew of three of which one is available for dismounted scouting. The scout platoons are equipped with six M220 TOW-2 anti-armor systems firing the BGM-71 TOW missile backed up by FGM-148 Javelin anti-tank missiles; four of the six HMMWVs are also equipped with the Long-Range Advanced Scout Surveillance System. The mortar section consists of two HMMWV-towed 120mm mortars and a fire direction center. Total strength includes 92 personnel, nine HMMWVs, and two FMTVs. The dismounted reconnaissance troop includes a headquarters section, two scout platoons, a mortar section, a sniper squad and attached fire support team; it can also include up to eight two-man dismounted forward observer teams. Unlike the other troops, the DRT is an infantry element, though task-organized as cavalry (e.g. a "troop"). The headquarters section includes the troop commander, executive officer, first sergeant, unit supply, and attached fire support team and combat medics. Each scout platoon is divided into three sections, while the sniper squad consists of a squad leader, two three-man sniper teams, and an HMMWV. The dismounted reconnaissance troop is a specialized unit with air and water assets to allow for clandestine infiltration. The mortar section consists of a six-man 60mm mortar section that can be split into two sections and is attached to either of the two scout platoons or the headquarters section, plus a fire direction center. Due to the numerous 'F7' coded Pathfinder slots and trained personnel, the DRT is often used as the squadron and brigade's pathfinder element. While largely lacking organic transport, the dismounted reconnaissance troop is easily deployable from both fixed-wing and rotary-wing aircraft. Total strength includes 79 personnel, four HMMWVs and an FMTV. The DRT also has a Raven unmanned aerial vehicle (UAV) which is typically used to support either of the two scout platoons or to surveil a separate named area of interest; some DRTs have utilized other platform such as the Instant Eye sUAS. The IBCT Cavalry squadron is able to support its parent unit through the combination of the firepower and mobility offered by its mounted forces and the ability to operate in complex and difficult terrain with its dismounted forces. However the mix of mounted and dismounted troops creates a mismatch in maneuvering ability and may require augmentation with additional transportation resources.
In 2024, 2nd Brigade Combat Team, 101st Airborne Division (Air Assault) began prototype testing of the mobile brigade combat team (MBCT) concept; in which the RSTA squadron's dismounted reconnaissance troop was reflagged as a Multifunctional Reconnaissance Company (MFRC). In comparison to the DRT, the MFRC has fewer snipers but more UAS and cUAS assets, as well as an organic air-defense capability in the form of a Stinger team. By 2025, the MBCT concept had been adopted as the new standard, with 25 IBCTs to be transitioned to MBCTs by the end of 2027. As part of this transition, the cavalry squadrons of every IBCT will be deactivated, with their former C troops (DRTs) becoming the basis for standing up new MFRCs to fill the role of a dedicated infantry reconnaissance formation to answer a brigade commander's priority intelligence requirements (PIRs).
SBCT squadron The SBCT cavalry squadron includes a headquarters troop and three cavalry troops, along with a forward support company attached from the brigade support battalion. The headquarters troop includes a command group, the troop headquarters section, the squadron primary staff, a medical platoon, an attached fire support cell, and a tactical air control party. Total strength includes 131 personnel, six Stryker CVs, fifteen HMMWVs, and seven FMTVs, with appropriate equipment carried in additional trailers.The U.S. Military's Force Structure: A Primer. Congressional Budget Office. June 2016. Chapter 2 - Army Stryker Brigade Combat Teams Each cavalry troop consists of a headquarters section, two scout platoons and a mortar section. The headquarters section includes the troop commander, executive officer, first sergeant, unit supply, and attached fire support team and combat medics. Each scout platoon has four Stryker RVs (with plans to transition to six Stryker RVs) and four FGM-148 Javelin anti-tank missiles. The mortar section consists of two Stryker MCVs and a fire direction center. Total strength includes 92 personnel, one Stryker CV, thirteen Stryker RVs, two Stryker MCVs, and two FTMVs. The SBCT cavalry squadron can cover a large area thanks to its three cavalry troops equipped with extremely mobile Stryker vehicles. The squadron is limited though in its ability to conduct dismounted reconnaissance or engage enemy armor units. The four-vehicle cavalry troops also face additional risks during route reconnaissance as individual Strykers are forced to reconnoiter lateral routes and terrain adjacent to the route.
RSTA line troops are a mix of 19D (cavalry scout) and 11B (Infantryman) MOS's, which serve as scouts and snipers. Also included are 11C (Indirect Fire Infantryman), which operate a 60 mm M224 Mortar Section, as well as various intelligence and communications soldiers. The dismounted reconnaissance troops consist of 11Bs in the scout platoons and sniper section; 11Cs in the mortar section; and 11Bs, 25Cs (Radio Operator-Maintainers), 74Ds (CBRN Specialists), and 92Ys (Supply Specialists) in the headquarters section, led by 11A officers and an 11Z 1SG. Common training pipelines include the Reconnaissance and Surveillance Leaders Course (RSLC), Cavalry Leader's Course, sniper school, Ranger school, pathfinder school, and in applicable IBCTs, air assault school and airborne school.
RSTA units in the United States Army Active Component RSTA Cavalry Units 1st Cavalry