Babylon 5 Data Files - Ground Pounders / GROPOS

Ground Pounders is the slang name given to the earth forces mobile infantry. The front line in any military assault, the Ground Pounders or GROPOS for short, are a tough-as-nails group who are prepared to fight on a moment's notice.
"Dr. Franklin's father, General Richard "Firestorm" Franklin aboard EAS Schwarzkopf, leads 25,000 EarthForce marines of the 356th Infantry Division, through the station en route to a secret military operation on the planet Akdor, the third planet in the Sh'lassen Triumvirate."