Why Superpowers Never Fight?

Why do superpowers constantly prepare for war, yet rarely fight each other directly?

Whenever superpowers confront each other head-on, the consequences are devastating: two world wars in the past, and today the risk of nuclear destruction.

Now there is another constraint.
Superpowers are deeply tied together through global supply chains, and a direct war could collapse the entire world economy.

So instead of confronting each other directly, they compete through proxy wars.

Conflicts where they stand behind the scenes, supplying weapons, money, and political backing.

Superpowers do not avoid war because they love peace.

They avoid it because a war between them could destroy themselves.

And that is why the greatest rivalries between superpowers are often fought on smaller battlefields.