But it’s also true that until the fighting stops, it will be almost impossible to gather an accurate record of troop deaths.
Until then, it is likely that there are hundreds if not thousands of deaths which are not being reported.
Many casualties were uncovered in the town of Bucha, near Kyiv, after Russian troops were pushed back by Ukraine.
Ms Bogner said in her speech on May 10: “In Bucha and other settlements to the north of Kyiv that were occupied by Russian armed forces, we have reports of the unlawful killing of over 300 men, women and children.