[Jimbuna]

I found this detail quite informative:

http://www.globalsecurity.org/milita...ld/rok/pkm.htm

On June 29th, 2002 there was a surprise attack on PKM Chamsuri 357 by a North Korean vessel. PKM Chamsuri 357 , which was conducting close-range maneuvers in an effort to remove the North Korean patrol boat, responded to the provocative suprise attack, and successfully defended the NLL with courage and faith in certain victory. The Captain Lieutenant Commander Yun Young Ha, died in combat while keeping a close watch on enemy movements. The Chief Petty Officer Han Sang Guk, who was manning the rudder until the end during the engagement as a quartermaster. The Petty Officers First Class Cho Cheon Hyung and Hwang Do Hyun, who continued to pull the trigger of the warship guns until their dying moments. The Chief Petty Officer Seo Hoo Won died a heroic death returning fire with an M-60 from the deck, where he could not even conceal himself. Petty officer second class Park Dong Hyuk who was shot while helping his wounded comrades and passed away at a young age after 3 months in hospital.