The South Korean Navy has taken delivery of its 12th domestically built guided-missile destroyer, which will join patrol missions to defend the nation's shoreline and harbor waters, the Defense Acquisition Program Administration (DAPA) said Monday. STX Offshore & Shipbuilding Co. delivered the newest PKG-class (Patrol Killer, Guided Missile) patrol ship to the Navy command, located in Jinhae, some 410 kilometers south of Seoul.