i would say of the late 20th century, the 21st century is probably china, or perhaps russia. Considering they had an “ethnic cleansing” of their government. They seem like a pretty good bet.
China?? They haven’t invaded a country since 60 years ago. usa have invaded the whole Middle East during this century and currently fighting a proxy war in Europe
china doesnt need to invade another country to be all authoritarian over them. For one they have their own population to do that with. And secondly, they seem to be focusing much more on getting other countries to hold chinese debt, presumably in an effort to make them default such that they can cut really sleazy deals with them. Also china allies with north korea and russia, they have no need to directly invade a nation.
Also the proxy war in europe isn’t a bad thing, that’s a good thing, it’s effectively a proxy war between europe, the US, and russia. Who broke their own treaty with ukraine. And is also doing warcrimes all over ukraine, unlike ukraine.