Miscellaneous groups

CIA
Arranged the Virtuous Mission with The Boss to regain control of the Philosophers legacy. However when Volgin used the Davey Crockett it became neccesary to distance themselves from The Boss. So Jack was sent in to Kill the Boss and Volgin and also to retrieve the legacy.

Members

 * Big Boss
 * Roy Campbell

Force XXI
This was a trial of using virtual reality training for soldiers. Raiden took part in these trials. They were later merged with the mercenaries of the Zanzibar disturbance, now with U.s. paying their contracts, to create the Next generation special forces and later became the Genome army, Wether or not Raiden took part in the gene therepy is unknown, but he was Not a member of the Genome army during the shadow mosses incedent, so it is presumable that he left before the mutiny.

Members

 * Big Boss
 * Solid Snake

Marine Corps
Force responsible for the creation of the Metal Gear Ray project, which was in response to the proliferation of metal gear variants through out the world. A large group of marines guarded the tanker Discovery while it was transporting Ray.

Members

 * The Boss
 * Major Zero
 * Liquid Snake

The bosses conection to the SAS, besides membership is unknown, But major zero was known to complain that U.S. soldiers were less able to adapt to surplus situations than the SAS members. Liquid snake worked for the SAS as a sleeper agent in the Gulf war for the SAS, also tracking down enemy SCUD missiles, but was captured by hostile forces and kept as a prisoner of war. Upon His rescue he was scouted for FOXHOUND, but it is unknown how his conection to the SAS continued after That.

Navy SEALS
Special forces Unit that was sent to the Big Shell to rescue the president and hostages. Both Teams however were killed, Bravo Team by Vamp and Alpha Team by Fortune. However Iroquois Pliskin survived because Vamp recognised him. He then went on to provide help for Raiden.

US Government
The United States Government have had their own brand of selected characters to play within the main plot of all of Metal Gear Solid. The most famous were respectively President George Sears (Solidus Snake) and President James Johnson who both played in Metal Gear Solid 2: Sons of Liberty while President George Sears makes a cameo role in Metal Gear Solid in a phone conversation with Revolver Ocelot. Lastly was President Johnson who is also a real president during this era, he appeared in Metal Gear Solid 3: Snake Eater for a bit in a phone conversation with Chairman Khrushchev

Members

 * President George Sears (Solidus Snake)
 * President James Johnson
 * President Lyndon B. Johnson also credited in the game as President Johnson