in the campaign “Truce of Vilna (1656)”
The Tsardom of Muscovy physically and legally isolated the autonomy from participation in international politics, deciding the fate of the Cossack lands without regard for their national interests: "The plenipotentiary representatives of the Ukrainian Cossack state, headed by R. Haponenko, were not admitted to the negotiating table"[1]. The hetman's request to grant the envoys mandates as full participants was "let pass unheeded" by the tsar's government: the delegates "sat idle beside the commissioners, not admitted to the official sessions"[2].