How to build a superpower?

[trick master]

Rome, Byzantinum, Mongolia, China, Spain, UK, France, Germany, URSS, USA...

How to build a superpower?

 

[NarutoB]

The USA alone is a superpower

 

[Limbo]

Russia and US are superpowers, maybe China as well.

 

[Ricardo]

Humanity is simply a super power.