The head of the Security Service of Ukraine, Vasyl Malyuk, said a day after the strike that 41 enemy aircraft were destroyed. Other assessments, however, including one by BBC News Ukraine, tallied a more modest number, upward of 11 destroyed jets.

Drones are all over the battlefield in Ukraine, prompting NATO militaries to reexamine how they train for future wars.

With 41 military aircraft impacted, the Ukrainian drone attack was described by some commentators as Russia's "Pearl Harbor." The attack on Pearl Harbor in December 1941 was a surprise air raid by Japan on the U.S. during World War II. Kyiv's assault follows ground advances by Moscow troops in recent days in Ukraine's Sumy border region.

Top security officials say China and North Korea’s support for Russia in its war against Ukraine has exposed how lines between regions have blurred, and the need for a global approach toward defense.

Bannon railed against Graham after Graham praised a flurry of unprecedented Ukrainian strikes targeting Russian strategic bombers.

Ukraine's new drone tactics to strike bombers and fighters at airfields across Russia are what a leading airpower expert called "a stunning success."