It may not be 300 tanks as requested, but 50 Leopards as well as 15 Challengers is a pretty massive power injection considering each modern western tank is worth several of Russia's old rubbish in battle.
They are also getting 50 Bradley fighting vehicles from the US which are just as good at killing old Russian tanks, as discovered during the Iraq war. It's in essence 130+ tanks in practice.
It may not be 300 tanks as requested, but 50 Leopards as well as 15 Challengers is a pretty massive power injection considering each modern western tank is worth several of Russia's old rubbish in battle.
They are also getting 50 Bradley fighting vehicles from the US which are just as good at killing old Russian tanks, as discovered during the Iraq war. It's in essence 130+ tanks in practice.