epa10310467 The first snow of the season covers residential buildings' roofs during a blackout in Kyiv (Kiev), Ukraine, 17 November 2022. The approach of winter will bring tougher conditions to Ukraine including heavy mud, snow and freezing cold that will make operations more difficult for both sides in the war. Russian troops entered Ukraine on 24 February 2022, starting a conflict that has provoked destruction and a humanitarian crisis. EPA/ROMAN PILIPEY