Ukraine, Russia, and the United States are set to begin the second day of talks in Abu Dhabi, aiming to end Moscow's full-scale invasion, which has lasted nearly four years. The first day of trilateral talks in the Emirati capital concluded on Wednesday with Kyiv describing the negotiations as "substantive and productive," though there was no apparent breakthrough. The main stumbling block in the negotiations is the fate of the territory in eastern Ukraine. Moscow is demanding that Kyiv