Why is the Russian Olympic Committee in the game, and why do they always have no land but then suddenly do something?

ROC is short for republic of china, it's a small country that only controls the island of taiwan east of PRC or peoples republic of china

I don't want to be rude, but why isn't it just called Taiwan, that's what most people call it

The official name is ROC, so Lizzy is going by the official name.