Russia will not abandon its invasion of Ukraine despite Western sanctions, according to former president Dmitry Medvedev. “The military operation to protect the Donbass will be carried out fully and until all results are achieved. No more and no less,” the vice-chairman of the Russian Security Council wrote on the social network VKontakte on Saturday. The West’s punitive measures did not change that. Medvedev described the West’s sanctions as “political impotence resulting from the inability to change Russia’s course.” “Now we are being driven out from everywhere, punished, scared, but we are …