The Challenge 1970 DVD (Region 1 - Playable in North America - The US, Canada, Mexico, etc.) Color.
Starring: Darren McGavin, Mako, Broderick Crawford, James Whitmore.
All-out war between the United States and an Asian country is averted when the two sides agree to settle their differences by each choosing a single soldier as champion and having the two men fight to the death on an isolated island.