December 5th,2025, at dawn, Russia believed it was stopping another Ukrainian drone swarm. Eight hours later, precision strike drones detonated inside a Russian government complex more than 1,400 kilometers from Ukraine. This video breaks down how Ukrainian planners exploited Russian air defense doctrine, reload cycles, fighter patrol patterns, and electronic warfare coverage to slip long-range autonomous drones through the largest airspace on Earth. Using real timelines, real systems, and verified capabilities, we examine how diversionary drone swarms drained SAM batteries, how GPS-denied navigation kept the strike alive, and why Russian jamming almost worked—but didn’t. This is modern drone warfare, explained step by step.