US Army AH-64 Apaches based in South Korea have an unusual mission -
dealing with North Korean seaborne infiltration forces. The Apaches
practiced anti-ship tactics with Navy P-3s and destroyers in Exercise
Foal Eagle this year. Their potential targets would be Gongbang class
hovercraft, Nampo class assault boats or semi-submersible infiltration
craft.

http://www.estripes.com/article.asp?...3&archive=true

South Koreans are toying with the idea of using new night-capable KO-1
air-controller in finding NK infiltration craft. KO-1 might be used as
AN-2 interceptor too.

http://www.koreaaero.com/english/cyb...p?part=sub12_3

P.S. Note that even the Stars and Stripes cannot get it right - it
says "Air Force P-3 Orion planes".