Ukraine’s security service released footage Wednesday of its attack on Russian war planes at multiple airbases across the country. In the span of a few hours on Sunday, nearly a third of Moscow’s strategic bomber fleet was destroyed or damaged with cheaply made drones sneaked into Russian territory, according to Ukrainian officials.

As Russia continues to bombard cities and towns across Ukraine, Russian officials have hardened their position against a ceasefire, continuing to repeat the obscure demand that the war’s "root causes" be addressed before agreeing to any truce.