The 717th Marine Strike Group was one of two MSGs assigned to the Seventh Brigade, First Battalion in the Starfleet Marine Corps during the 23rd and 24th centuries.
717th Marine Strike Group is a Special Operations unit assigned to the USS DeBraak. Their nickname is The Running Ghosts. Their motto is "You Speak, We Sneak..."
In 2385, the 717th MSG's OIC was Lieutenant Colonel Brian A. Crist. The DOIC was Captain Ponch Fenwick and the NCOIC was Gunnery Sergeant Brent Henry Jr.