Philippine Sea (June 22, 2006) â A landing signalman enlisted (LSE) directs an SH-60F Seahawk assigned to the âBlack Knightsâ of Helicopter Anti-Submarine Squadron Four (HS-4), during a lift-off from the flight deck aboard the Nimitz-class aircraft carrier USS Ronald Reagan (CVN 76) during Exercise Valiant Shield 2006. Valiant Shield focuses on integrated joint training among U.S. military forces, enabling real-world proficiency in sustaining joint forces and in detecting, locating, tracking and engaging units at sea, in the air, on land and cyberspace in response to a range of mission areas. U.S. Navy photo by Photographerâs Mate 3rd Class Christopher D. Blachly