Earlier this week, Ukraine said Russia appeared to be pulling old T-62 tanks out of storage. The UK stated Friday that these old assets would be "particularly vulnerable" to anti-tank weapons.

FILE - Workers remove a 40,000-liter underground gasoline storage tank to be replaced with a new tank at a gas station in Sacramento, Calif., May 23, 2003.

But as its losses mount, the country has been forced to turn to its older tanks in storage, including T-62s, T-55s, and T-54s, some of which date as far back as the 1940s.

T-72 Urals in storage in Russia. Russian forces in Ukraine have lost around five tanks, on average, every day for more than 460 days since Russia widened its war on the country. That’s a lot of ...