Moscow has also lost tens of thousands of troops, including individuals recently rushed to the battlefield to hold Russia's crumbling front lines.
Pentagon: Russia has lost half of its main battle tanks in Ukraine
Russia Lost 1,500 Tanks, Likely Half Its Arsenal, in Ukraine: Report
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Defence Secretary announces combat power package for Ukraine
Ukraine Has Caught Up With Russia's Tank Numbers, Data Signal - Bloomberg
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Ukraine's Tank Numbers Now Equal Russia's – Analysis - The Moscow Times
Zelenskyy: Russia Occupying 20% of Ukrainian Territory
An expert explains why Putin's war isn't going to plan - Vox
Avoiding a Long War: U.S. Policy and the Trajectory of the Russia-Ukraine Conflict