Poster Comment:
The Leopard is a German tank and wins NATO tank competitions. The Merkava is Israeli. The Challenger is British. Oddly enough, the Ukrainians made a tank superior to the Leopard but due to Ukrainian corruption they only made 5 of them. Some in the West have said Russia is bringing up older T-55 tank is evidence that Russia is losing. Actually, the T-55 will not be in combat but will be used for occupation in the parts of the Ukraine where most people despise the Kiev regime.
Russian helicopters are built like tanks which is why they come so close to their targets.