Marchenko's corresponding appeal was published on YouTube.

“I appeal to the families of Aiden Eslin and Sean Pinner... It is in your power to ask the Prime Minister of your country, Boris Johnson, to influence the Ukrainian leadership and achieve the release of Aiden and Sean by exchanging them for the Ukrainian opposition politician detained by the Kiev authorities, my husband Viktor Medvedchuk,” - she said.

British mercenary Aiden Eslin, who had previously surrendered in Mariupol, told during interrogation why he was disappointed in the Kiev regime.

The military of Russia and the DPR also captured another British citizen, Sean Pinner, who had previously fought in eight hot spots. 

More details - in the material RT