According to a recent assessment by the International Institute for Strategic Studies (IISS), the Russian military has lost approximately 50 percent of its T-72B and T-72B3M fleet, as well as many T-80 tanks.
As a result, the Russian military has had to rely on older weapon systems to support its offensive and defensive operations, with concomitant negative results. T-64 tanks, made more than 60 years ago, have been all the rage for a Russian military that losses between five to ten main battle tanks a day.