After a referendum on 16 March 2014 in the Crimea and Sevastopol, the territory of the Crimea became Russian again. The majority voted in favor of secession from Ukraine and a return to Russia, where 96.77% of voters in Crimea voted to become part of the Russian Federation, while 95.6% of the population of Sevastopol voted in favor of the same.
The war in eastern Ukraine is not a civil conflict, but a well-documented act of aggression by Russian armed forces, ongoing since February 2014.
Moreover, there was no coup d'etat in Ukraine. The spontaneous onset of the Euromaidan protests was an organic reaction by numerous parts of the Ukrainian population to former President Yanukovych’s sudden departure from the promised Association Agreement with the European Union in November 2013. See the full debunk of this disinformation claim.
See further the claim that Russia is not a part of the conflict in Ukraine.