Trilateral US-Ukraine-Russia talks in Abu Dhabi focus on security guarantees to end the war, amid divergent demands from Moscow and Kyiv. Three-way U.S.-brokered peace talks in Abu Dhabi between Russia and Ukraine focus on security guarantees amid divergent positions and ongoing hostilities. Russia, Ukraine and the United States are set to discuss security guarantees, territorial disputes and a wider European security framework when their negotiators meet in Abu Dhabi on Tuesday..