Quick and maneuverable, U.S. Navy and Coast Guard patrol boats have become an integral part of maritime security operations (MSO) in the Persian Gulf. As part of Commander, Task Group (CTG) 158.1, the patrol boats are conducting MSO, which help set the conditions for security and stability in the North Persian Gulf and protect Iraq's sea-based infrastructure to help provide the Iraqi people the opportunity for self-determination. U.S. Navy 170-foot Cyclone-class Coastal Patrol (PC) ships and Coast Guard 110-foot Island-class patrol boats (PB) can reach their destinations faster and navigate in and out of shallower waters than larger Navy ships. PCs typically remain forward deployed for long periods of time in the Persian Gulf, while their crews are swapped out every six months.