As a series of drones hit Ukrainian cities, a new report by the Institute for the Study of War (ISW) suggests Russia is "leveraging" technological innovation and experience gained in the war in Ukraine "directly against NATO states.

In the early hours of December 2024, as the sun began to rise, the sound of drones filled the air. This was the first successful all-drone assault on Russian positions — a groundbreaking event in the history of modern warfare.

Russia launched overnight drone attacks on several Ukrainian cities and regions, including Kyiv, Donetsk, and Sumy. Ukrainian forces shot down 61 out of 83 UAVs. View on euronews

Officials say a Russian drone has blasted a hole in an apartment building in northeastern Ukraine during a nighttime attack that killed at least six people and wounded nine others.

Cars are engulfed in flames after Russia launched drone attacks on Sumy, Ukrainian officials say:: State Emergency Service of Ukraine in Sumy region:::: Sumy, UkraineA 38-year-old woman was hospitalized after Russia launched drones at Sumy,