The trilateral talks between Russia, Ukraine, and the United States, held in Abu Dhabi on November 10–11, have ended. The head of the Russian delegation, Vladimir Medinsky, said Russia and Ukraine had agreed to a prisoner exchange, and that the central topic of the talks was the European security system, on which the sides “found mutual understanding in some areas, but not in others.” As expected, there were no breakthroughs on the other topics.