Ukraine's General Staff says 18,900 Russian soldiers killed during invasion.

Russian troops have also lost 698 tanks, 1891 armored fighting vehicles, 332 artillery pieces, 108 multiple rocket launchers, 55 surface-to-air missiles, 150 jets, 135 helicopters, 7 ships, 76 fuel tanks, 111 drones, and 4 ballistic missile systems, the General Staff said on April 7.