A Marine expeditionary unit is the smallest air-ground task force (MAGTF) in the United States Fleet Marine Force. Each MEU is an expeditionary rapid reaction force ready to answer any crisis, whether it be disaster aid or a combat mission. Marine amphibious unit (MAU) was the name used until the late 1980s.
The 4th Marine Division is a reserve division in the United States Marine Corps. It was raised in 1943 for service during World War II, and subsequently fought in the Pacific against the Japanese. Deactivated after the war, the division was re-formed in 1966 and elements of the division deployed during the Gulf War in 1990–1991, as well as during the Iraq War. It is currently the ground combat element of the Marine Forces Reserve and is headquartered in New Orleans, Louisiana, and has units throughout the United States.
Buckley Space Force Base is a United States Space Force base in Aurora, Colorado named after United States Army Air Service First Lieutenant John Harold Buckley. The base is run by Space Base Delta 2, with major units including the U.S. Space Force's Space Delta 4, the Colorado Air National Guard's 140th Wing, the Denver Naval Operations Support Center, and the National Reconnaissance Office's Aerospace Data Facility-Colorado.
In the United States Marine Corps, a Marine Air–Ground Task Force is the principal organization for all missions across the range of military operations. MAGTFs are a balanced air–ground, combined arms task organization of Marine Corps forces under a single commander that is structured to accomplish a specific mission. The MAGTF was formalized by the publishing of Marine Corps Order 3120.3 in December 1963, "The Marine Corps in the National Defense, MCDP 1-0". It stated:
A Marine air–ground task force with separate air ground headquarters is normally formed for combat operations and training exercises in which substantial combat forces of both Marine aviation and Marine ground units are included in the task organization of participating Marine forces.
4th Light Armored Reconnaissance Battalion is a United States Marine Corps Light Armored Reconnaissance battalion of the Marine Corps Reserve. Their primary weapon system is the LAV-25 and they are part of the 4th Marine Division and Marine Forces Reserve. The unit headquarters is at Camp Pendleton, California, but other units in the battalion are located throughout the United States. 4th LAR Bn is the largest combat battalion in the Marine Corps, with 7 companies.
Marine Air Control Group 28 (MACG-28) is a United States Marine Corps aviation command and control unit based at Marine Corps Air Station Cherry Point that is currently composed of four command and control squadrons and a low altitude air defense battalion that provide the 2nd Marine Aircraft Wing with airspace coordination, air control, immediate air support, fires integration, air traffic control (ATC), radar surveillance, aviation combat element (ACE) communications support, and an integrated ACE command post in support of the II Marine Expeditionary Force.
The 2d Low Altitude Air Defense Battalion is an air defense unit of the United States Marine Corps. The battalion is subordinate to Marine Air Control Group 28 (MACG-28) and the 2nd Marine Aircraft Wing and is currently based at Marine Corps Air Station Cherry Point. The battalion is composed of one Headquarters and Support Battery and two Firing Batteries.
The 1st Low Altitude Air Defense Battalion is an air defense unit of the United States Marine Corps. It is part of Marine Air Control Group 18 (MACG-18) and the 1st Marine Aircraft Wing and is based at Marine Corps Air Station Kaneohe Bay, Hawaii. The battery was decommissioned on 28 September 2007 and reactivated on 31 August 2023.
The 3d Low Altitude Air Defense Battalion is an air defense unit of the United States Marine Corps currently responsible for providing short range air defense. The battalion falls under the command of Marine Air Control Group 38 (MACG-38) and the 3rd Marine Aircraft Wing and is currently based at Marine Corps Base Camp Pendleton, California.
The United States Marine Corps is organized within the Department of the Navy, which is led by the Secretary of the Navy (SECNAV). The most senior Marine commissioned officer is the Commandant of the Marine Corps, responsible for organizing, recruiting, training, and equipping the Marine Corps so that it is ready for operation under the command of the unified combatant commanders. The Marine Corps is organized into four principal subdivisions: Headquarters Marine Corps, the Operating Forces, the Supporting Establishment, and the Marine Forces Reserve.
A Marine expeditionary brigade (MEB) is a formation of the United States Marine Corps, a Marine air-ground task force of approximately 14,500 Marines and sailors constructed around a reinforced infantry regiment, a composite Marine aircraft group, a combat logistics regiment and a MEB command group. The MEB, commanded by a general officer (usually a brigadier general), is task-organized to meet the requirements of a specific situation. It can function as part of a joint task force, as the lead echelon of the Marine expeditionary force (MEF), or alone. It varies in size and composition, and is larger than a Marine expeditionary unit (MEU) but smaller than a MEF. The MEB is capable of conducting missions across the full range of military operations.
The 108th Air Defense Artillery Brigade is an air defense artillery brigade of the United States Army. The mission of the brigade is to train and maintain a strategic crisis response air defense artillery brigade capable of deploying worldwide, on short notice, to provide air defense force protection from air-breathing threats and tactical ballistic missiles, as well as allow freedom of maneuver for XVIII Airborne Corps operations.
Short range air defense (SHORAD) is a group of anti-aircraft weapons and tactics that have to do with defense against low-altitude air threats, primarily helicopters and low-flying aircraft such as the A-10 or Sukhoi Su-25. SHORAD and its complements, HIMAD and THAAD divide air defense of the battlespace into domes of responsibility based on altitude and defensive weapon ranges.
The Ukrainian Marine Corps, also known simply as the Ukrainian Marines, is the maritime land force service branch of the Armed Forces of Ukraine since 2023, responsible for conducting expeditionary and amphibious operations. From its modern foundation in 1993 up to 2023 it constituted part of the Coastal Forces of the Ukrainian Navy. It is used as a component part of amphibious, airborne and amphibious-airborne operations, alone or in coordination with formations and units of the Ground Forces in order to capture parts of the seashore, islands, ports, fleet bases, coast airfields and other coast objects from the enemy. It can also be used to defend naval bases, vital shoreline areas, separate islands and coast objects, and security of hostile areas.
In the United States Marine Corps, the aviation combat element or air combat element (ACE) is the aviation component of the Marine Air-Ground Task Force (MAGTF). The ACE is task organized to perform the six functions of Marine Corps aviation in support of MAGTF operations. The ACE is led by an aviation headquarters which employs rotary-wing, tiltrotor, and fixed-wing aircraft in conjunction with command and control, maintenance and engineering units.
A headquarters and service company is a company-sized military unit, found at the battalion and regimental level in the U.S. Marine Corps. The U.S. Army equivalent unit is the headquarters and headquarters company.
The Kopasgat is the air force infantry and special forces corps of the Indonesian Air Force. The corps is also known as the Orange Berets from the colour of their service headgear. Kopasgat is trained to seize and defend airfields from enemy forces known as Operasi Pembentukan dan Pengoperasian Pangkalan Udara Depan , airborne operations, and other specific military operations within the scope of the Indonesian Air Force.
The History of ground based air defense in the United States Marine Corps dates back to the early 1930s with the establishment of the Advanced Base Force. World War II would be the high-water mark for air defense units when 20+ defense/anti-aircraft battalions were formed with many seeing significant action throughout the Pacific Theater. Following the war, the Marine Corps divested itself of most of its air defense capability at a time when the service was facing deep personnel cuts and fighting for its institutional survival. Beginning in the early 1950s the Marine Corps aligned itself with the Navy and their development of surface-to-air missiles (SAMs). The Marine Corps retained both flak weapons and SAMs throughout the 1950s until the fielding of the MIM-23 Hawk Missile System in 1960. The HAWK Missile was employed by Light Antiaircraft Missile (LAAM) battalions and remained a mainstay of Marine Corps ground based air defense for the next four decades.
The Marine Air Command and Control System (MACCS) is the aviation command and control agencies of the United States Marine Corps that provide the Aviation Combat Element (ACE) commander with the means to monitor, supervise, and influence aviation operations in support of the Marine Air-Ground Task Force. The command and control agencies of the MACCS are provided by the squadrons and battalions of the Marine Air Control Groups that are present within each Marine Air Wing. The capabilities resident within the MACCS allow the MAGTF commander to safely conduct aviation operations, facilitate timely maneuver and prosecution of fires and ultimately retain full control of their entire area of operations. MACCS agencies are also responsible for coordinating Marine Corps aviation operations with joint, multinational and civil aviation.
United States of America
United States Marine Corps 
