"Tom Clancy's Ghost Recon is a series of military tactical shooter video games created by Red Storm Entertainment, the game development studio founded in part by American author Tom Clancy.
Ghost Recon has also been novelized by Grant Blackwood under the pseudonym David Michaels.
In the series, the player is in charge of a fictional, newly-conceived squad of United States Army Special Forces operators from Company D, 1st Battalion, 5th Special Forces Group (5th SFG) stationed at Fort Bragg, North Carolina. Except for the "5th SFG" designation, this unit is entirely fictional. They are sometimes referred to as "the Ghosts". Their role is not unlike other real world special operations forces, in that their operations are kept highly classified."
Source: Wikipedia, "Ghost_Recon", available under the CC-BY-SA License.