Inside Ukraine's secret drone campaign destroying sites deep in Russia

Ukraine's military intelligence agency, the GUR, is conducting a large-scale drone campaign using Liutyi long-range kamikaze drones to strike critical sites in Russia. The operation, involving 200-300 drones nightly, targets military installations and oil facilities, with a recent attack on an oil refinery near Moscow disrupting flights and sending plumes of smoke. Ukrainian forces emphasize evolving flight routes and a mix of drone types to evade Russian defenses.