The United States has given Ukraine and Russia a June deadline to end their nearly four-year war, Ukrainian President Volodymyr Zelenskyy said on Friday. "The Americans are proposing the parties end the war by the beginning of this summer and will probably put pressure on the parties precisely according to this schedule," Zelenskyy told reporters in Kyiv. He added that President Donald Trump's administration insists on a clear timeline and has proposed the next round of trilateral talks in the US, likely Miami. Ukraine will attend these talks. These talks follow recent US-mediated meetings in Abu Dhabi, which made little progress as both sides stick to opposing demands. Russia demands Ukraine withdraw from the eastern Donbas region, but Kyiv rejects this and notes its constitution forbids ceding the territory. Despite the stalemate, both sides exchanged 157 prisoners of war on February 5. Zelenskyy said POW swaps will continue under the current agreement. US envoy Steve Witkoff said the prisoner swap shows "sustained diplomatic engagement is delivering tangible results and advancing efforts to end the war in Ukraine." The US has not specified consequences if deadlines are missed. Meanwhile, Ukraine reports that Russia launched "more than 400 drones and around 40 missiles" overnight, targeting Ukraine's energy sector. Zelenskyy called on supporters of the talks to respond, saying, "Moscow must be deprived of the ability to use the cold as leverage against Ukraine." Russia's negotiator Kirill Dmitriev described talks as moving in a "good, positive direction." However, Ukraine says energy attacks continue, with over 217 strikes so far this year. Emergency crews work to restore power to thousands. Russia claims it targets drone storage, defense sites, and energy supplies. These attacks persist despite a January agreement by Putin to halt strikes on energy infrastructure during freezing weather. The US deadline and fresh talks aim to push peace forward amid ongoing conflict and attacks.