U.S. President Donald Trump says he's spoke with Russian President Vladimir Putin and that the Russian leader told him “very strongly” that he will respond to Ukraine’s weekend drone attack on Russian airfields.

President Trump said Russian President Vladimir Putin told him he would have to respond to Ukraine’s recent attack, dampening the prospects for immediate peace between Moscow and Kyiv.

At least five people, including a one-year-old child, were killed in a Russian drone strike on the northern Ukrainian city of Pryluky overnight, regional governor Viacheslav Chaus said Thursday

Nearly 1 million Russian soldiers have been killed or injured in the country’s full-scale invasion of Ukraine, according to a new study, a grisly measure of the human cost of Russian President’s Vladimir Putin’s unprovoked three-year assault on its neighbor.

Russia’s invasion force is expected to suffer more than 1 million casualties by the summer as a result of the Ukraine war, with around 250,000 troops already confirmed dead, according to a new study.

Russia has suffered as many as five times the number of deaths in Ukraine as in all Russian and Soviet wars combined since World War II, a new study says