Russian army has lost up to half of key battle tanks, analysts

Experts say Moscow has large number of cold-war era models in storage so can continue war in Ukraine for some time

Russia Likely Lost Half its Heavy Tanks in Ukraine: U.S. - The Moscow Times

Ukraine war: Satellite images reveal Russian defences before major assault

Ukraine 'inflicting very serious losses' on Russian troops in the

Najvažnije u agresiji Ruske gamadi na Ukrajinu

Know the Battlespace to Own the Battlespace: Lessons From Ukraine

The High Price Of Losing Ukraine

How many tanks did Russia lose in the Winter War?

Ukraine: Russia has lost 87% of troops it had prior to start of

Why Ukraine is waging a brutal war of attrition against Russia

Ukraine: Russia has lost 87% of troops it had prior to start of war, according to US intelligence assessment

Russia says its military is regrouping. A ramped-up assault on eastern Ukraine could be next