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 launched strikes overnight in Ukraine, days after news emerged of a sophisticated attack inside Russia by Ukrainian drones that took a year to plan, according to security officials. This comes on the heels of ceasefire talks in Turkey,