SUSTAIN (military)
Encyclopedia
Small Unit Space Transport and Insertion or SUSTAIN is a concept first proposed in 2002 by the United States Marine Corps
United States Marine Corps
The United States Marine Corps is a branch of the United States Armed Forces responsible for providing power projection from the sea, using the mobility of the United States Navy to deliver combined-arms task forces rapidly. It is one of seven uniformed services of the United States...

 to deploy Marines via spaceflight
Spaceflight
Spaceflight is the act of travelling into or through outer space. Spaceflight can occur with spacecraft which may, or may not, have humans on board. Examples of human spaceflight include the Russian Soyuz program, the U.S. Space shuttle program, as well as the ongoing International Space Station...

 to any location on Earth.

Project Hot Eagle, launched by the Defense Advanced Research Projects Agency
Defense Advanced Research Projects Agency
The Defense Advanced Research Projects Agency is an agency of the United States Department of Defense responsible for the development of new technology for use by the military...

 and the Air Force Research Laboratory
Air Force Research Laboratory
The Air Force Research Laboratory is a scientific research organization operated by the United States Air Force Materiel Command dedicated to leading the discovery, development, and integration of affordable aerospace warfighting technologies; planning and executing the Air Force science and...

, is an investigation into the development and use of suborbital spacecraft
Spacecraft
A spacecraft or spaceship is a craft or machine designed for spaceflight. Spacecraft are used for a variety of purposes, including communications, earth observation, meteorology, navigation, planetary exploration and transportation of humans and cargo....

 to fulfill this vision. Hot Eagle would use a craft based on a design similar to Space Ship One, which could launch a squad on a suborbital trajectory in two stages and deliver them anywhere on two hours' notice.

Extraction
Extraction (military)
Extraction , in tactical combat and special operations use, is the process of removing constituents from a targeted site when it is considered imperative that they be immediately relocated out of a hostile environment and taken to a secured area under friendly control...

 would have to come by other means. Future proposed capabilities for the Marine Corps include launching into low earth orbit
Low Earth orbit
A low Earth orbit is generally defined as an orbit within the locus extending from the Earth’s surface up to an altitude of 2,000 km...

 to choose the time of an attack.

Delivery of soldiers by rocket has been proposed before, including by General John B. Medaris, head of the Army Ballistic Missile Agency
Army Ballistic Missile Agency
The Army Ballistic Missile Agency was the agency formed to develop the US Army's first intermediate range ballistic missile. It was established at Redstone Arsenal on February 1, 1956 and commanded by Major General John B...

 in the 1950s. The lander itself is designed to hold a 13 man squad and land in almost any terrain at any time, avoiding diplomatic concern for airspace rights.

External links

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