While this is all true, it's a lot of eggs (or a very big egg) in one basket. Tanks are powerful, but not invulnerable, as the past two months have shown. The u

While this is all true, it's a lot of eggs (or a very big egg) in one basket. Tanks are powerful, but not invulnerable, as the past two months have shown. The usefulness of a tank is always a balance between what it can dish out and how vulnerable it is. Especially in close terrain (urban, forest) they're very vulnerable to infantry with anti-tank weapons, whereas in the open field, they're vulnerable to air attacks. Whether or not a tank is useful depends on how well you can defend against those threats. This is why for many attacks, missiles or drones are more practical than tanks. Those are expensive per shot, but cheap to deploy and lose. In heavy fighting, the relative cheapness of individual shots makes a tank more affordable, but the deployment itself, especially if you want to give the tank the protection it needs, is quite expensive.