Ukraine’s drone attack against Russian airfields was audacious and daring. But most of all, it was meticulously planned and flawlessly executed.

Ukraine released new footage on Wednesday of its major drone strike on four Russian military airbases, showing attack drones targeting numerous Russian strategic bombers and landing on two airborne early warning and control planes.

The United States assesses that Ukraine's drone attack over the weekend hit as many as 20 Russian warplanes, destroying around 10 of them, two U.S. officials told Reuters, a figure that is about half the number estimated by Ukrainian President Volodymyr Zelenskiy.

Ukraine's SBU security service said it had hit the road and rail bridge linking Russia and the Crimean peninsula below the water level with explosives.