"Much-loved singer of Australian songs, Slim Dusty, sang a song concerning that memorable victory of early November 1942. Co-written with Tony Brooks, the title of the ballad is Kokoda Track."

This is not a war song but at least is a song about the track. The quote above is from Chris Woodland's article titled:
KOKODA - TRACK OR TRAIL?
This appears online in issue 6 of Simply Australia and is in its archived section. It is an interesting read about the use of the words "track" and "trail".