Breakdown Casualties Time period Source Ukrainian forces (ZSU, NGU) 12,490+ killed 21 April – 20 June 2022 Russian Ministry of Defense[118] Russian and allied forces (RAF, DPR, LPR, PMC Wagner) 6,343–7,363+ soldiers killed 18 April – 20 June 2022 Ukrainian Eastern Command[119] Donetsk PR forces 702+ killed, 3,111+ wounded 23 April – 17 June 2022 Donetsk PR[120]