Russia executed its largest drone assault on Ukraine early on February 3, 2026, deploying over 450 Shahed-type drones alongside 70 missiles, targeting energy infrastructure and civilian areas amid sub-zero temperatures. Ukrainian air defenses intercepted 334 drones and most missiles, but at least 10 people were injured, with strikes causing power outages for thousands in Kyiv, Odesa, and other regions.

President Volodymyr Zelensky described the barrage as "hell unleashed," accusing Moscow of aiming to freeze civilians ahead of US-brokered peace talks. The attack damaged electrical grids, residential buildings, and a maternity hospital in Odesa, exacerbating Ukraine's winter vulnerabilities after prior strikes had already strained power supplies.

Russia's Defense Ministry claimed the operation targeted military sites and "decision-making centers," justifying it as retaliation for Ukrainian incursions. Ukrainian officials reported seven energy facilities hit, prompting emergency blackouts. Air force commander Mykola Oleshchuk hailed defenses for downing 78% of drones using mobile groups and electronic warfare.

The assault, one of the biggest since the 2022 invasion, drew international condemnation, with NATO pledging more air defense aid. Casualty figures remained preliminary as rescue efforts continued into February 4.