Russia's invasion of Ukraine has claimed thousands of lives.
Exactly how many is not clear, but the United Nations estimated on Thursday that some 549 civilians have died in the war. Between 2,000 and 4,000 Ukrainian troops have been killed, according to a US official. Anywhere between 3,000 and 6,000 Russian troops may also have been killed.
Statistics cannot do justice to the tragedy of war. Those who have died were sons, daughters, fathers and mothers. The loss of their lives cannot be measured in numbers.