19 January 2021 FM 3-96
SECTION I – INFANTRY BRIGADE COMBAT TEAM
1-1. The IBCT is an expeditionary, combined arms formation optimized for dismounted operations in
complex terrain—a geographical area consisting of an urban center larger than a village and/or of two or
more types of restrictive terrain or environmental conditions occupying the same space (ATP 3-34.80). The
IBCT can conduct entry operations by ground, airland, air assault, or amphibious assault into austere areas
of operations with little or no advanced notice. Airborne IBCTs can conduct vertical envelopment by
parachute assault. The IBCT’s dismounted capability in complex terrain separates it from other functional
brigades and maneuver BCTs.
1-2. Mission variables, categories of specific information needed to conduct operations, help to determine
the task organization and required augmentation for the IBCT. For example, if additional tactical mobility—
the ability of friendly forces to move and maneuver freely on the battlefield relative to the enemy
(ADP 3-90)—is required, the higher tactical headquarters can temporarily augment the IBCT with aviation
assets to conduct air movements or air assault operations (see FM 3-99). Augmentation can include wheeled
assets such as the mine-resistant ambush protected family of vehicles (see ATP 3-21.10).
1-3. The role of the IBCT is to close with the enemy by means of fire and movement to destroy or capture
enemy forces, or to repel enemy attacks by fire, close combat, and counterattack to control land areas,
including populations and resources. Fire and movement is the concept of applying fires from all sources
to suppress, neutralize, or destroy the enemy, and the tactical movement of combat forces in relation
to the enemy (as components of maneuver applicable at all echelons). At the squad level, fire and
movement entails a team placing suppressive fire on the enemy as another team moves against or
around the enemy.
1-4. The IBCT performs complementary missions to SBCTs and ABCTs. The IBCT optimizes for the
offense against conventional, hybrid, and irregular threats in severely restrictive terrain. The IBCT performs
missions such as reducing fortified areas, infiltrating and seizing objectives in the enemy’s rear, eliminating
enemy force remnants in restricted terrain, and securing key facilities and activities. The IBCT conducts
stability operations tasks in the wake of maneuvering forces.
1-5. IBCTs configure for area defense and as the fixing force component of a mobile defense. The IBCT’s
lack of heavy combat vehicles reduces its logistic requirements. Not having heavy combat vehicles gives
higher commanders greater flexibility when adapting various transportation modes to move or maneuver the
IBCT. Airborne IBCTs conduct airborne assault-specific missions. All IBCTs can conduct air assault
operations. (See FM 3-99 for information on airborne and air assault operations.)
1-6. The IBCT is a combined arms force organized around dismounted Infantry. Cavalry, field artillery,
engineer, intelligence, signal, sustainment, and CBRN reconnaissance units are organic to the IBCT (see
figure 1-1).
Unique to the IBCT is the weapons company in each Infantry battalion, composed of four
mounted assault platoons and provides those battalions with the capability to defeat light enemy armor threats
with organic mounted tube launched, optically tracked, wire guided/wireless guided Improved Target
Acquisition System, M2 series heavy machine gun, and MK-19 40-millimeter (mm) grenade machine gun
weapon systems (see paragraph 1-9). Higher commanders augment the IBCT for a specific mission with
additional capabilities. Augmentation can include aviation, Armor, field artillery, air defense, military police,
civil affairs, a tactical PSYOP element, engineers, CBRN, and additional information systems assets. Three
Infantry battalions and the Cavalry squadron serve as the IBCT’s primary maneuver forces.
1-7. The Infantry battalions organize with a headquarters and headquarters company, three Infantry rifle
companies, and a weapons company (see figure 1-2 on page 1-4). The headquarters and headquarters
company provides planning and intelligence, signal, and fire support to the battalion. The headquarters
company has a battalion command section, a battalion staff section, a company headquarters, battalion
medical, scout, and mortar platoons, a signal section, and a sniper squad. The headquarters company mortar
platoon is equipped with 120-mm mortars (trailer towed) and 81-mm mortars (ground mounted). The
battalion receives a forward support company (FSC) for sustainment purposes (see chapter 9), normally in a
direct support relationship. (See ATP 3-21.20 for additional information.)
1-8. Infantry rifle companies have three Infantry rifle platoons, a mortar section, a Raven unmanned aircraft
system (UAS) team, and a headquarters section. Each rifle platoon has three Infantry rifle squads and a
weapons squad. The mortar section has two squads, each with a 60-mm mortar. Habitual attachments to the
Infantry rifle company include a fire support team at the company level and forward observer teams at the
platoon level, medics assigned to the rifle platoons, and a senior medic at the company level. (See
ATP 3-21.10 and ATP 3-21.8 for additional information.)
1-9. The Infantry weapons company has a company headquarters and four assault platoons. Each assault
platoon has two sections of two squads and a leader’s vehicle. Each squad contains four Soldiers and a vehicle
mounting the heavy weapons. The heavy weapons can be tailored to a mission based on the commander’s
mission analysis. Infantry weapons companies are equipped with the following weapons: the tube launched,
optically tracked, wire guided/wireless guided Improved Target Acquisition System, the MK19, the M2, and
the M240 series machine gun. While all of the weapons vehicles can mount the MK19 and the M2, only two
vehicles per platoon are equipped to mount the Improved Target Acquisition System. Habitual attachments
for the weapons company include a fire support team at the company level and medics. (See ATP 3-21.20,
appendix D for additional information.)
Note. The Infantry battalion scout platoon and IBCT Cavalry squadron organize, train, and equip
to conduct reconnaissance, security operations, and surveillance. However, reconnaissance,
security operations, and surveillance remain a core competency of the Infantry rifle company,
platoon, and squad.
1-10. The IBCT Cavalry squadron’s mission focuses on information requirements—in intelligence usage,
those items of information regarding the adversary and other relevant aspects of the operational environment
that need to be collected and processed in order to meet the intelligence requirements of a commander
(JP 2-0)—tied to the execution of tactical missions (normally reconnaissance, security operations, and
surveillance). The squadron’s information collection effort answers the commander’s priority intelligence
requirements. Information acquired during collection activities about the threat and the area of interest allows
the IBCT commander to focus combat power, execute current operations, and prepare for future operations
simultaneously.
1-11. The Cavalry squadron (see figure 1-3) has four troops: a headquarters and headquarters troop, two
mounted Cavalry troops, and one dismounted Cavalry troop. (See ATP 3-20.96.) The headquarters troop
organization includes a command section, the troop headquarters section, the squadron primary staff, a
medical section, a sniper section, a retransmission (known as RETRANS) section, an attached fire support
cell, and a tactical air control party (TACP). The two mounted Cavalry troops (three scout platoons each) are
equipped with wheeled vehicles (each with a crew and scout team for dismounted operations), tube launched,
optically tracked, wire guided/wireless guided Improved Target Acquisition Systems, the Long-Range
Advance Scout Surveillance Systems, a mortar section (120-mm trailer towed), and a Raven UAS team. The
dismounted Cavalry troop (two dismounted scout platoons each) enables dismounted infiltration and
rotary-wing aircraft insertion and has a mortar section (60-mm ground mounted), a Raven UAS team, and a
sniper squad. Habitual attachments to the Cavalry troop include a fire support team at the troop level and
forward observer teams at the platoon level, medics assigned to each platoon, and a senior medic at the troop
level. (See ATP 3-20.97 and ATP 3-20.98.) The squadron receives an FSC for sustainment purposes (see
chapter 9), normally in a direct support relationship.
1-12. The IBCT field artillery battalion has four batteries: a headquarters and headquarters battery, two
105-mm firing batteries (six-gun M119 series towed howitzer battery), and one 155-mm firing battery
(six-gun M777 series towed howitzer battery). The firing batteries in a battalion have two 3-gun firing
platoons. The field artillery battalion provides massing fires in space and time on single or multiple targets
with precision, near precision, and area fires to support IBCT operations. The IBCT field artillery battalion
has a target acquisition platoon (counterbattery and countermortar radars) organized and equipped to quickly
detect, and accurately locate, classify, and report indirect fire from enemy mortars, artillery, and rockets to
permit their immediate engagement with counterfire. The information provided includes the point of origin,
predicted point of impact, radar cross section, and velocity. The battalion receives an FSC for sustainment
purposes, normally in a direct support relationship. The battalion receives an FSC for sustainment purposes
(see chapter 9), normally in a direct support relationship. (See ATP 3-11.23 for additional information.)
More to follow re SBCT and ABCT.