On Thursday morning, a group of armed operatives crossed the border from Ukraine into Russia’s Bryansk Region. The so-called Russian Volunteer Corps (RDK; or Russkiy dobrovol’cheskiy korpus), consisting of Russians fighting for the Ukrainian Armed Forces, claimed responsibility for the incursion. President Vladimir Putin branded the incident “yet another terrorist attack, another crime… they entered the border territory and opened fire at civilians.”

‘One of Europe’s top right-wing extremists’: Who is the neo-Nazi behind this week’s Ukrainian attack in Russia’s Bryansk Region?

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