Quote Originally Posted by Rosacrux redux
The first combined arms use ever (not in the modern sence though... aircrafts were not invented back then...) is by Alexander the Great. ...
Yes and no - Alexander the Great did use many concepts that were similiar to combined arms warfare. Several older battles were also fought using the combined arms that were availiable during the time period.

And then the question was

Ok, who used combined arms first in modern warfare?

Alexander the Great hardly qualifies when using the term modern warfare.