A U.S. Navy Sikorsky MH-53E "Sea Dragon" helicopter assigned to Helicopter Mine Countermeasures Squadron (HM) 14, Detachment 1, flies over the "Avenger"-class mine countermeasure ship USS "Chief" (MCM-14) during exercise "Clear Horizon 2014" south of the Korean Peninsula. The annual bilateral exercise between the U.S. and Republic of Korea navies was designed to enhance cooperation and improve capabilities in mine countermeasure operations.