We have been counting and analysing Russia’s military losses in Ukraine since the very beginning of the full-scale war.
Olga Ivshina, who leads the project, explained to BBC World Service radio’s The Fifth Floor programme how it is done and what it means for the families and close ones of those who lost their lives in the invasion of Ukraine.
“Superb interview!” tweeted The Economist’s defence editor Shashank Joshi.
Have a listen!
You can also look at this data analysis telling the story of changing profile of an average Russian soldier in Ukraine.
Counting Russia's lost troops in Ukraine: stories of desperate families