The Collaborative International Dictionary of English v.0.48:

Inchon \Inchon\ prop. n.
   The name of a town in Korea and of a battle in the Korean War
   (1950), in which United Nations forces made an amphibious
   landing at Inchon, a harbor on the west coast of Korea.
   [WordNet 1.5 +PJC]

WordNet (r) 3.0 (2006):

Inchon
    n 1: a port city in western South Korea on the Yellow Sea [syn:
         Inchon, Incheon, Chemulpo]
    2: a battle in the Korean War (1950); United States forces
       landed at Inchon