Q: It was a cartoon, at the end of the magazine maybe? Just like a tournament bracket (arranged with all the teams in their first round, quarter-final, semi-final, and finals) except it’s the countries of the world, with the semi-finals being USSR vs Afghanistan, and US vs Vietnam, with the “final” (yet to be played) Afghanistan vs Vietnam.
A: That was actually from Spy magazine. See the Comments link for more details. (Thanks to Chris for answering this one.)