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 will likely surpass 1 million casualties in its war on Ukraine this summer, according to one of the world’s leading think tanks.

After Ukraine’s drone strikes on Russian air bases, the two sides talked for less than an hour in Istanbul and a halt to the fighting seems out of reach for now.