title: Korean Destroyer eXperimental
text: KDX (Korean Destroyer eXperimental) is a substantial shipbuilding program embarked on by the Republic of Korea Navy.
  
  It is a three-phased program consisting of three individual classes of ships:
   KDX-I (3,800 tons),
   KDX-II (5,500 tons),
   Aegis-equipped KDX-III (11,000 tons).
   KDX-IIA, planned derivative of KDX-II with Aegis combat system (5,500 ~ 7,500 tons)
  
  Gwanggaeto the Great class destroyer (KDX-I)
  
  Chungmugong Yi Sun-shin class destroyer (KDX-II)
  
  Sejong the Great class destroyer (KDX-III)
  
  Destroyers of the Republic of Korea Navy