At the end of last year, former Ukrainian president Petro Poroshenko (June 2014–May 2019) announced in an interview that, back in 2018, he had initiated a special operation to detain mercenaries belonging to the notorious Russian private military company (PMC) Wagner Group (News.ru, December 31, 2020)—a shadowy paramilitary outfit allegedly culpable in war crimes committed in Ukraine, Syria, Libya and Sub-Saharan Africa.

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