What to expect when Russia, Ukraine and the US hold trilateral talks in Abu Dhabi.
Negotiators from Ukraine, Russia and the United States are due to meet in the capital of the United Arab Emirates (UAE) on Tuesday for a new round of talks aimed at ending nearly five years of full-scale war triggered by Moscow's invasion of its neighbor. Security guarantees for the warring parties are high on the agenda, with US officials insisting that a broader security architecture for Europe must be part of any peace deal.