The trilateral talks between the U.S., Russia and Ukraine in Abu Dhabi were "productive" and made progress, U.S. officials said.
Why it matters: The talks were a new phase in the U.S. mediation efforts aimed at ending the war. President Trump's advisers were very optimistic after the talks on Saturday and felt they managed to go on a path that will allow them to narrow the gaps on the key sticking point — the territorial control in eastern Ukraine.
