What happens when Cold War politics collide with the cola wars? In the 1989, it produced one of the strangest deals in business history when  PepsiCo signed an agreement with the Soviet Union to trade its cola syrup for Russian vodka—and a decommissioned fleet of rusting warships, including 17 attack submarines. It’s a wild tale, one that began decades earlier—with the leader of the Soviet Union taking part in a high-stakes forerunner of the “Pepsi Challenge.” Click here to read all about it.