150212-N-KD168-064 GULF OF ADEN - Service members lower a repaired rotor system into place on an MH-60S Seahawk from Helicopter Sea Combat Squadron 28 aboard amphibious assault ship USS Iwo Jima. Iwo Jima is the flagship for the Amphibious Ready Group and, with the embarked 24th Marine Expeditionary Unit, provides a versatile sea-based, expeditionary force that can be tailored to a variety of missions in the U.S. 5th Fleet area of operations.