Russia's heavy losses in the Ukraine war: A grueling test of strength. Vladimir Putin had to write off 3,000 soldiers for every 2.5 kilometers of progress in the area around the heavily contested city of Avdiivka.
Now the Russian army is said to have lost 1,030 men in a single day. Experts expect another wave of attacks in the spring and summer. In order to be able to fend off another Russian advance, Kiev is still vying for US support.