Did Russia secretly use its shadow fleet to spy on NATO's most sensitive nuclear sites? A new report by the International Institute for Strategic Studies claims Russian-linked drones targeted key military and nuclear facilities across Europe in 144 separate incidents between late 2024 and early 2026. From Britain's RAF Lakenheath to France's submarine base, investigators say the surveillance campaign mapped strategic targets while exposing gaps in NATO's defenses. How did the drones evade detection, and what does this reveal about Europe's security vulnerabilities?