Ukraine faced a massive wave of Russian drone and air attacks, resulting in multiple casualties and targeting critical infrastructure. Concurrently, Ukrainian drones launched strikes against Russian oil refineries, including the Perm plant, and ports, causing operational disruptions.

Ukrainian President Volodymyr Zelensky controversially ordered his military not to attack Moscow's Victory Day parade, a move that reportedly angered the Kremlin. Russia proceeded with a significantly more subdued celebration than in previous years.