He WAS well schooled in tactics. During his exile he virtually LIVED on horseback.

against the Persians however the Macedonians only had to act with boldness. The Persians' tactics were based on overwhelming manpower and EGO ( that particualr lesson he would have learned from having studied the Battle of Thermopylae). IOW's

the jaws of Darius were huge, but Alexander refused to place his body in their clutches. and then he dared to actually go after The King himself.

Warwick

" I have always found that the main obstacle to free
association on these boards is the broad
misconception that what we do not know is more
significant than what we do know."

Warwick L Nixon, March 8, 2019