The Russian invasion in eastern Ukraine (Donbas, Luhansk) has resulted in 13,500 deaths and 1.5 million Ukrainians refugees.
https://en.wikipedia.org/wiki/War_in_Donbass
Invasion or those living in that region that want to be either autonomous or part of Russia?
https://en.wikipedia.org/wiki/Donetsk
On 7 April 2014, pro-Russian activists seized control of Donetsk OSA and declared the "Donetsk People's Republic",[27] asking for Russian intervention.