Two men where soldiers and everyone died. The men spent the rest of the movie trying to kill each other and in the end they become friends. One actually dies at the end. I think h was Asian. Really great movie! Just can't remember the name. It is an older one from maybe the early 90s? What is it's name?

Hell in the Pacific with Lee Marvin had a similar plot
Hell in the Pacific (1968) - IMDb (http://www.imdb.com/title/tt0063056/)