For the first time in the Soviet Union, Pepsi-Cola appeared on open sale in 1980, during the Olympics (it was already in foreign exchange stores). There is a legend that supposedly the first Soviet person to try Coca-Cola was Marshal Zhukov, and it happened during his meeting with Dwight Eisenhower in 1945.
But in fact, the tasting of Coca-Cola in the Soviet Union took place as early as 1938. And if it weren't for the war, America would have built a Coca-Cola plant in the Soviet Union in the early 1940s, as the drink was considered "stimulating" and particularly suitable for workers.