2013-2014.Ukrainians aren't Commie Bastards, they're Western, freedom loving Capitalists. They threw out their last Putin backed President in 2015 I believe, and he fled back to Russia.
Yanukovych yanked the rug out from under a negotiated agreement with the EU. As the result of the Euromaidan protests against government corruption and oligarchs beginning November 2013, In February 2014 Yanukovych turned over the keys and bolted. The Ukrainian parliament eventually established a quorum to create an interim government. Russia declared this process an illegal coup and occupied Crimea, and later Donetsk and Luhansk.
The Minsk II accords in 2015 were supposed to help resolve the crisis. But they called for pullout of all foreign forces and local elections in accordance with Ukrainian law. So not happening.