Russia launched a barrage of drones and ballistic missiles across broad swaths of Ukraine early Friday, killing at least three people and injuring dozens of others, days after Kyiv launched a daring raid on Moscow’s fleet of strategic bombers.

Four people were killed and more than 50 injured in Ukraine after Russia pummeled targets across the country with drones and missiles for a second straight night.

Technological advances have given threadbare militaries and rebel fighters the ability to strike stunning blows against far stronger forces.

When the chief of the local fire department was called to a scene of a Russian strike in the central Ukrainian city of Pryluky overnight, he and his brigade found five people were killed and nine injured after a drone hit a residential building.

PRYLUKY, Ukraine (AP) — At least five people, including a 1-year-old child, his mother and grandmother, were killed Thursday in a nighttime Russian drone attack on the northern Ukrainian city of Pryluky, officials said.

President Donald Trump reportedly thought Ukraine’s June 1 surprise drone attack on Russia’s bomber fleet deep in the country was “badass,” reports Axios. The president told close aides that he thought the move was “pretty strong” and that he was “impressed” by the actions of the Ukrainians,

Russian President Vladimir Putin told President Donald Trump in a phone call Wednesday that he was obligated to respond to Ukraine’s weekend drone attack, Trump said, setting up a potential escalation in the conflict just as the US president hopes to broker an end to the war.