A trainload of M-55S tanks that Slovenia has handed over to Ukraine.

They have been upgraded with an Israeli 105 mm main gun, and reactive armour. It's believed the US compensated the reportedly 500 million dollars Slovenia was asking for them since they mothballed the tanks in 2014.

"These are the last of soviet build tanks that the west can give to Ukraine. Poland and most of Eastern european countries have given all their soviet era tanks to Ukraine"