CSIS Analysis Highlights Russia's Losses in the War Against Ukraine
Between February 2022 and June 2026, the Russian military suffered approximately 1.4 million casualties, with up to 450,000 troops killed, according to a report from the Center for Strategic and International Studies (CSIS). These staggering losses are nine times greater than the combined casualties of the Soviet Union and Russia in all conflicts since World War II. In the first half of 2026, the casualty ratio stood at 8:1 in Ukraine’s favor, underscoring a significant advantage for Ukrainian forces in the ongoing war.
Russian troop advances on key fronts remain at historically low levels, averaging just 50 to 90 meters per day. Authors Seth Jones and Riley McCabe note that these are among the slowest rates of advance seen in any war over the past century. In April and May 2026, Russia lost roughly 400 square kilometers of territory—the first net monthly losses for Moscow since August 2024.
Urgent Need for Continued International Support to Ukraine
Given these losses, the United States and Europe must intensify pressure on Russia’s oil revenues by enforcing stricter sanctions against Moscow’s shadow fleet. Such measures could help cut off financial resources fueling the war effort.
The CSIS report underscores the effectiveness of Ukraine’s active defense strategy, as well as the role of new technologies like autonomous Hornet attack drones. These elements are contributing to Ukrainian battlefield successes, especially as Russian military casualties mount.
The CSIS report highlights not only the scale of Russia’s losses but also the ongoing relevance of international support for Ukraine amid a protracted conflict.
Heavy casualties and slow operational progress point to the difficulties facing the Russian army. These factors could shape future decisions by Western nations regarding military and economic aid to Ukraine—aid that remains critical to sustaining its defensive efforts.
As the conflict continues to evolve, recent reports indicate a troubling trend for Russian forces, with daily losses persisting at alarming rates. This ongoing situation highlights the importance of understanding the broader implications of military engagements. For a deeper insight into the latest statistics on Russian military casualties, you can read more about the recent updates from Ukraine’s General Staff.