Alternative History: Alexander Lived or D

Died- The adventure would have ended. The only thing keeping many of the troops from continuing was Alexander himself.  The result would be the same anyhow as what actually happened, the generals and advisors would squabble and take over the various areas he ahd already conquered in europer and hellenism of the east ended within a couple of generations anyway.

Lived-Again he had the huge empire but a battle weary army, made up of very few originals and many allies unable to conquer the massed forces of the already sophisticated roman legions (they were not a standing army, but were experienced with the italian wars of the same time) so i doubt he could have conquered rome, who would have ahd support from the other italian city states bot under her control.  As for carthage, they had already been subjicated to foriegn rule and i doubt they would resist. this was before the time of hannibal and the great militarism.  a macedonian takeover would prove threatening to rome however, as long as the macedonians hadnt been defeated before reaching carthage.

He would have Conquered Carythage without a Doubht if he put his mind to it. The Military Reforms were not done yet and Caryhages Amry was a very Week fighting Force. Rome is another Story However. The other latin tribes as craig mentioned up above would have aided Rome. And Though the Roman Tribes were far away from the Glory they would one they have. They still knew how to fight and had Expieranced Troops. He may have had a chance all the Same. After all it was Alexander we are talking about. But he would Certaintly have had his hands full. Also you asked about still having time to go back to India. He would have but it would have delayed the Conquests for a long time.