Ukrainian-Russian relations were corrupted by a coup d’état in the Ukrainian capital Kyiv in 2014 when people with hostile feelings towards Russia came to power in Ukraine.
In April 2014, the Ukrainian authorities launched a military operation against the residents of the Donetsk and Luhansk republics, which declared their independence unilaterally, as an expression of their opposition to the coup in Ukraine in February of the same year.
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.
There was no coup d'état 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.