Ukrainian, Russian and U.S. envoys are meeting in the United Arab Emirates, the first known instance that officials from the Trump administration have sat down with both countries as part of Washington’s push to end Moscow’s nearly 4-year-old invasion. Friday's talks follow a flurry of diplomatic activity in recent days, from Switzerland to the Kremlin, even though serious obstacles remain between both sides. While Ukrainian President Volodymyr Zelenskyy said in Davos, Switzerland, on Thursday that a potential peace deal was “nearly ready,” certain sensitive sticking points — most notably those related to territorial issues — remain unresolved. The talks are happening despite continued Russian attacks on Ukraine and its energy infrastructure amid a bitterly cold winter.