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

Russian warplanes were damaged but not destroyed in a June 1 attack by Ukraine, and they will be restored, Russia's deputy foreign minister said.

Drones are “ubiquitous, because they are quite useful, and they're demonstrating that every day in Ukraine,” one analyst told NBC News.