A bunch of separatists (funded and trained by the CIA no doubt) wanted to become independent from Russia. We'll leave the reasons aside, otherwise this post will turn into a novel.
The Russians dispatched their army to quash the rebellion. They failed initially, but ultimately succeeded.
A bunch of politicians in Eastern Ukraine wanted to get some autonomy, while remaining a part of Ukraine.
The Ukrainian government initiated an Anti-Terrorist-Operation, an started killing people.
And now the AFU, armed, trained and supported by NATO, are attempting to invade Russia.
