Russia launched 172 drones and 36 ballistic missiles at Kyiv and surrounding regions overnight Saturday, targeting electrical substations in five regions — including one connecting two nuclear power plants to the capital. The city's Northern Bridge, a critical Dnipro crossing, was closed for repairs. Five people were injured, including a 14-year-old girl. Electricity, water, and heating supplies were all severely disrupted. The strike caps a week of day-long power cuts and water interruptions for Kyiv's roughly 3.5 million residents. Ukrainian officials frame the campaign explicitly: freeze civilians into submission over winter. Zelenskyy accused Russia of trying to "plunge Kyiv and the entire country into a blackout." The pattern is now industrial in scale — substations, not just power plants, are the target set, because substations are harder to replace and their destruction cascades across the grid. The timing is inseparable from diplomacy. Negotiators from Russia, Ukraine, and the US are scheduled to meet Tuesday and Wednesday in Abu Dhabi. Zelenskyy described the bombardment as Moscow's "preparation" for those talks — establishing facts on the ground (and in the dark) to maximise leverage. He dismissed Jared Kushner's latest framework as "Yalta 2.0," referencing the 1945 summit that divided postwar Europe among great powers without consulting the divided. Kushner's social media posts outlined discussions on a "new security framework for Europe" alongside guarantees for Ukraine. This maps directly to Russia's pre-invasion demand that NATO revert to its pre-1997 posture — before the Baltics, eastern Europe, and the Balkans joined. Trump called a "big beautiful agreement" close, involving "all of Europe." Western diplomats say accepting Russia's terms would functionally end NATO. Zelenskyy appealed to the newly Democratic US Congress for "increased bilateral support," a signal that Kyiv sees the legislative branch as a counterweight to an executive branch leaning toward a deal Ukraine fears will be made over its head. "Ukraine must not be left alone," he said. His CNN interview was blunt: end the war first, provide meaningful security guarantees, and only then discuss broader European security architecture. The battlefield picture offers some context for Moscow's escalation. Russia lost 54,000 troops killed or injured last month — the highest monthly toll of the war — while frontline progress has stalled. The air campaign against civilian infrastructure is not a supplement to military victory; it is a substitute for one. Every destroyed substation is an argument that Ukraine's pain will continue until it accepts terms. European partners remain deeply sceptical of any framework that rewards Russia's maximalist demands. The core structural question is whether the US, under Trump, will treat Ukrainian sovereignty as a non-negotiable or as a bargaining chip in a broader geopolitical deal. The answer to that question is being written in the dark, in Kyiv, right now.