Former U.S. Ambassador to NATO Kurt Volker weighs in on the Ukraine-Russia conflict as Ukrainian President Volodymyr Zelenskyy is willing to cede territory in exchange for NATO membership and how President-elect Trump can push for peace. Former U.S. Ambassador to NATO Kurt Volker weighs in on the Ukraine-Russia conflict as Ukrainian President Volodymyr Zelenskyy is willing to cede territory in exchange for NATO membership and how President-elect Trump can push for peace.