Key developments on Jan. 24-25: * 80% of Ukraine faces emergency power cuts following Russian aerial attack * 15% of Kyiv residential buildings remain without heat after Russia's attacks, officials say * At least 1 killed,

The U.S.-led push to end Russia’s nearly 4-year-old war in Ukraine gained momentum late last year and is moving ahead in 2026, with leaders, diplomats and envoys traveling to a flurry of meetings to discuss a potential deal.