A $300 drone can blow up a tank or other combat vehicle that a 3 million USD or more one. This is the viewpoint of Ukrainian proponents of drone development, and it suggests the center of a revolution in technology currently remapping the Ukraine-Russia war.

Ukraine has relied on this innovative tactic to wreak havoc on Russia's Black Sea fleet, damaging or destroying a number of warships.

Polish and allied NATO aircraft were scrambled in response to a large Russian drone and missile attack launched into Ukraine on Sunday night, the Polish military's Operational Command said in a statement.