Kyiv also suffered a damaging blow when a Russian missile struck a Ukrainian military training base, killing at least 12 soldiers. Hours before that strike, Russia launched what Ukrainian officials said was the largest combined overnight aerial assault on the country since the start of the war.

Reports of an imminent Russian summer offensive and troop build ups on Ukraine's border are raising alarms in Sumy Oblast and fears that a large-scale assault could be on the horizon. Russian President Vladimir Putin on May 22 said he had ordered his military to create a "security buffer zone" along the border,

Trump's ambitious goal of ending the Russia-Ukraine war upon taking office failed to pass, held up by the irreconcilable visions of Kyiv and Moscow.

Russian troops launched some 109 drones and five missiles across Ukraine overnight and into Saturday, the Ukrainian Air Force said. Three of the missiles and 42 drones were destroyed and another 30 drones failed to reach their targets without causing damage, it said.

Russia is deploying a military strategy known as the “triple chokehold” to grind down Ukrainian troops, according to experts.

A bipartisan duo met with the Ukrainian president and made the case for Congress to impose harsh economic penalties on Moscow for its continuing offensive.

Russia is expanding its military along Finland's border, prompting Finland to monitor Russia's movements and "prepare for the worst."

The advance may be linked to Moscow's attempts to create "buffer zones" along the border, Ukrainian regional authorities say.

American weapons are important, but Ukrainian drones have changed everything.