Russia's outdated tanks pose risk in modern warfare.

The Institute for the Study of War (ISW) has warned that Russia risks increased casualties if it deploys Soviet-era T-54/55 tanks from storage to Ukraine, as the tanks are highly vulnerable to many anti-tank systems available to Ukraine. The Russian offensive has been hampered by the loss of armored vehicles, and the deployment of inferior equipment may prompt a further degradation of Russian manpower in Ukraine. Meanwhile, the US Department of Defense has announced that Ukraine will receive an expedited shipment of older M1A1 Abrams tanks in the fall, rather than the M1A2 tanks that had been expected.