Kyiv Post. UPDATE 2-US to mediate trilateral talks with Ukraine, Russia in Abu Dhabi next week, US envoy. Ukraine talks in Abu Dhabi led by Steve Witkoff and Jared Kushner to discuss peace, de-escalation and security. By Steve Holland WASHINGTON, Nov 2 (Reuters) - The United States will bring together delegations from Ukraine and Russia in Abu Dhabi on November 10-11 to discuss ending Moscow's war against.