Read Siege of Titan (Star Crusades Uprising, Book 1) Page 5
CHAPTER THREE
The Confederate Marine Corps serves as an amphibious force-in-readiness that is able to conduct operations both in and from space. As outlined in Title 32 of the Confederation Constitution and as originally introduced under the Confederation Security Act of 147b, it has three primary areas of responsibility:
These are the seizure or defence of ports, docks, and naval bases as well as land operations to support naval campaigns by the Centauri Confederate Navy fleet.
The development of tactics, techniques and equipment as used by amphibious landing forces.
Such other duties as the office of Command in Chief may direct.