Ukraine’s Security Service said it has struck at least 40 Russian bombers deep inside Russian territory in what would be one of the largest and most audacious attacks on Russian territory in the years long conflict.

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

A surprise Ukrainian drone attack that targeted Russian air bases hosting nuclear-capable strategic bombers was unprecedented in its scope and sophistication.