At the Korean War Museum in Seoul, Chung Kwon Park leads mostly American tourists through the history of the Korea War.

"War broke out in June 1950," Park describes. It's a history he says many Americans and even younger South Koreans have forgotten.

"Most the Americans I have met, have a very small idea of the Korean War, most of the post-war generation here thought 'that happened, that's it,' you could say the Korean War had been the forgotten war," Park explained.