Military Glossary and Acronyms

Command, Control, Communications, Computers, Intelligence, Surveillance, and Reconnaissance. C4ISR is the information and decision network that helps a military detect threats, understand the battlespace, coordinate forces, and act faster than an opponent.

Command and Control. C2 is the authority, direction, and coordination exercised by commanders over assigned forces.

Intelligence, Surveillance, and Reconnaissance. ISR covers the collection, processing, and use of battlefield information.

Center of Gravity. A source of strength, will, capability, or freedom of action that gives an opponent the ability to fight or endure.

Concept of Operations. A high-level explanation of how a force plans to achieve a mission or campaign objective.

Rules of Engagement. Directives that define when, where, and how military force may be used.

Operations Order. A formal order that explains the mission, commander's intent, execution plan, logistics, and command structure.

Warning Order. A preliminary order that alerts units to prepare for a future operation.

Fragmentary Order. A shorter update that modifies or supplements an existing operations order.

A clear statement of the desired outcome and purpose of an operation. It helps subordinate leaders act when conditions change.

A command philosophy that gives subordinate leaders freedom to act within the commander's intent.

Observe, Orient, Decide, Act. A decision cycle used to explain tempo, adaptation, and advantage in combat decision-making.

The repeated cycle of planning, briefings, decisions, updates, and assessments used by military staffs.

The principle that forces should operate under one responsible commander for a specific mission.

The number of people, units, or functions a commander can effectively supervise.

A military's formal principles for organizing, fighting, sustaining, and adapting forces.

The use of national power, military force, alliances, geography, economics, and political will to achieve long-term objectives.

The planning and conduct of campaigns that connect tactical actions to strategic goals.

Physical or logical paths that connect military actions to campaign objectives.

A place, event, function, or condition that can create a major advantage if seized, protected, or neutralized.

The ability to deploy, support, and sustain military power beyond national borders.

A military force designed to deploy abroad and operate away from home bases.

Conflict where a weaker or differently structured force uses unconventional methods to offset a stronger opponent.

A strategy focused on wearing down an opponent through sustained losses in personnel, equipment, morale, and resources.

A style of war that emphasizes speed, surprise, positioning, and disruption rather than direct grinding attrition.

A defensive strategy using multiple layers of resistance to slow, weaken, and disrupt an attacker.

A rapid dominance strategy designed to overwhelm an opponent's perception, command system, and will to fight.

A counterinsurgency approach that removes hostile forces from an area and then maintains security to prevent their return.

Airborne Warning and Control System. Aircraft equipped with radar and command systems used to monitor airspace and coordinate air operations.

Air Tasking Order. A daily or periodic plan assigning air missions, targets, timing, and coordination details.

Suppression of Enemy Air Defenses. Missions designed to degrade, disrupt, or destroy enemy air defense systems.

Beyond Visual Range. Air combat conducted at distances where pilots cannot visually identify the target.

Close Air Support. Air action against hostile targets close to friendly ground forces.

Combat Air Patrol. Aircraft assigned to defend a specific area from hostile aircraft.

A level of control in the air that allows friendly operations without prohibitive interference from enemy air forces.

Air attacks against enemy forces, logistics, or infrastructure before they can reach the battlefield.

Long-range attacks against an opponent's infrastructure, production, command systems, or strategic assets.

Vertical Takeoff and Landing, and Short Takeoff and Vertical Landing. Aircraft capabilities that allow operations from short runways, ships, or austere bases.

Anti-Access and Area Denial. Systems and strategies designed to prevent an opponent from entering or operating freely inside a region.

Anti-Submarine Warfare. Operations used to detect, track, deter, or destroy submarines.

Ballistic Missile Submarine. A submarine carrying long-range ballistic missiles, usually central to nuclear deterrence.

A naval formation centered around an aircraft carrier and supported by escorts, submarines, aircraft, and logistics ships.

A navy capable of sustained operations across the open ocean and far from home waters.

A naval force focused on rivers, coastal waters, and shallow maritime zones.

The ability to use a maritime area for friendly operations while limiting enemy use of that area.

The ability to prevent an enemy from using a maritime area, even without fully controlling it oneself.

An operation that projects ground forces from sea platforms onto a shore or contested coastline.

The use of naval power to restrict an opponent's movement, trade, ports, or maritime supply routes.

Main Battle Tank. A heavily armored and armed ground combat vehicle designed for direct combat and breakthrough operations.

Infantry Fighting Vehicle. An armored vehicle that carries infantry and provides direct fire support.

Forward Line of Own Troops. The forward-most positions held by friendly forces.

Improvised Explosive Device. A non-standard explosive device often used in insurgency, guerrilla warfare, and irregular conflict.

Counterinsurgency. Military, political, economic, and information efforts used to defeat insurgent movements and stabilize contested areas.

The coordinated use of infantry, armor, artillery, engineers, airpower, logistics, and command systems to create mutual battlefield advantage.

A tactic where one element suppresses the enemy while another moves to flank, assault, or reposition.

A tactic where one force holds the enemy in place while another attacks from the side or rear.

Combat in cities or built-up areas, where terrain, civilians, visibility, and close combat change battlefield dynamics.

Infantry equipped with armored vehicles for mobility, protection, and coordinated operations with tanks.

Combat at very short range, often inside buildings, tunnels, ships, or confined terrain.

A surprise attack from a concealed position against a moving or exposed enemy force.

A maneuver that attacks an enemy's flank or rear to cut off movement, disrupt command, or force collapse.

A concentrated attack through a specific point in the enemy line to rupture defenses and open the way for exploitation.

A maneuver that bypasses the enemy's main position and threatens objectives behind it, forcing withdrawal or repositioning.

A short-duration attack for disruption, sabotage, intelligence, or psychological effect without the intent to hold terrain.

An offensive action designed to break through defenses and allow follow-on forces to exploit the opening.

A preemptive attack intended to disrupt or delay an enemy force preparing to attack.

An attack aimed at enemy leadership, command systems, or decision networks.

A major campaign across a theater of war involving multiple operations under a strategic objective.

A defensive approach that uses maneuver and counterattack to disrupt an attacker rather than relying only on fixed positions.

A defensive posture built around fixed positions, fortifications, terrain, and prepared firepower.

A defensive action that slows an enemy while avoiding decisive engagement.

The principle of assigning only essential combat power to secondary efforts so the main effort receives priority.

A tactic that destroys resources, infrastructure, or supplies to deny their use to an advancing enemy.

The ability of a force or country to absorb attacks, recover, adapt, and continue operating.

The geographic, industrial, logistical, and political space a country can use to absorb pressure and sustain conflict.

Electronic Warfare. The use of the electromagnetic spectrum to sense, disrupt, deceive, protect, or attack enemy systems.

Signals Intelligence. Intelligence collected from intercepted communications, radar, or other electronic emissions.

Cyber Electromagnetic Activities. Integrated cyber and electronic operations used to affect command systems, sensors, networks, and communications.

Electronic Countermeasures. Techniques such as jamming or spoofing used to disrupt enemy sensors, communications, or targeting.

Operations conducted through digital networks to disrupt, deny, degrade, exploit, or damage information systems.

Anti-Satellite Weapon. A system designed to disable, disrupt, or destroy satellites.

Low Earth Orbit. A satellite orbit commonly used for reconnaissance, communications, and missile tracking.

Geostationary Orbit. A high orbit where satellites remain fixed over one area of Earth, useful for communications and surveillance.

The ability to track, identify, and assess objects and threats in orbit.

A weapon using concentrated energy, such as lasers or microwaves, to damage or disable targets.

Logistics Package. A scheduled delivery of ammunition, fuel, food, repair parts, and other supplies to deployed units.

Table of Organization and Equipment. The formal structure of a unit, including personnel, weapons, vehicles, and equipment.

Medical Evacuation. Transport of wounded, injured, or ill personnel with medical care during movement.

Casualty Evacuation. Emergency movement of casualties, often without dedicated medical evacuation assets.

Mass Casualty Event. An incident with enough casualties to strain or overwhelm available medical capacity.

The planning and execution of movement, supply, maintenance, transport, fuel, ammunition, medical support, and sustainment.

The distance and duration over which a force can employ and sustain combat power.

Routes that connect military forces to supplies, reinforcements, ports, bases, and command centers.

A forward-positioned base used to support operations, logistics, command, and security.

The ability to move forces, equipment, and supplies across long distances by air, sea, rail, or road.

Chemical, Biological, Radiological, and Nuclear. A category of threats requiring specialized detection, protection, response, and recovery.

Weapons of Mass Destruction. Weapons capable of causing large-scale destruction or casualties, usually nuclear, chemical, biological, or radiological.

Intercontinental Ballistic Missile. A long-range missile system capable of striking targets across continents.

A military action using physical destructive force, such as missiles, bombs, artillery, or direct fire.

Military effects achieved without physical destruction, such as cyber disruption, electronic jamming, deception, or psychological operations.

A weapon guided by GPS, laser, infrared, radar, or other systems to improve accuracy.

Fire directed against enemy artillery, rocket, or mortar systems after detecting their firing positions.

An area where military fires are restricted or prohibited to protect civilians, friendly forces, or sensitive sites.

The process of detecting, identifying, locating, and prioritizing targets for engagement.

The use of capability, credibility, and communication to prevent an adversary from taking hostile action.