Ukraine has launched U.S.-supplied ATACMS missiles deep inside Russian territory for the first time, marking a significant escalation in the conflict. The strikes targeted multiple Russian military sites, showcasing the impact of long-range ballistic missiles with ranges up to 300 kilometers. Kyiv had previously been restricted to using these missiles only in occupied Ukrainian territory, but new U.S. approvals allowed strikes inside Russia. Russia claims its S-400 and Pantsir air defenses intercepted some missiles, though debris damaged civilian structures. Ukrainian officials emphasized that the attacks demonstrate resilience and determination to defend their homeland while using advanced U.S. weaponry.