Limitations of the Time

Genghis Khan created the foundation in which his sons and grandsons would use to then conquer the world

Genghis Khan is a military commander that rise from nothing.

He is not like Alexander the Great who has his father to pave the way for him.

Alexander started off with a very powerful and capable military that was perfectly poised for conquest.

Thanks to Philip, when Alexander assumed the throne, the military machine is well oiled to perfection

This is not to deny Alexander the Great many military brilliance but to not credit his father for his earlier conquest and at which he could quickly expand is disingenuous

Genghis Khan is not like these other military leaders that have everything handed to them

He had to be the one that created it. A trial of right and errors

He created his own method of management. And promoting people based on merit and not nobility is a revolutionary concept to the world back then