I think the question you are going for right now is, Why was the macedonian army so successful?
They simply were not prepared
The Macedonian army (if you want to be specific, the Macedonian military under King Philip).
The army King Porus had elephants as part of its centre. It was an army of infantry and cavalry, with the elephants as the equivalent of today's tanks. The elephants were held by the pikes of the Macedonian phalanx, and separated so that they could not break the whole Macedonian line. Some were turned back on their own troops and broke them up, some passed through the Macedonian line and were dealt with in the rear.
yes the salvation army is successful because it helps people in need. that is so cool.
because of who ruled it.
Atina Bojagi was an extremely successful Macedonian swimmer! She is BRILLIANT!
His job was a commander of an Macedonian army. He doesn't have an empire.
He was a Macedonian Greek whose army conquered Persia.
He ruled by harnessing his Macedonian nobles, ruthlessly slaughtered those who opposed him, and used the loyalty of his Macedonian army as the core to his conquering sequence.
The Roman army was so successful in executing their battle tactics due to their discipline. They held their ground in situations where the enemy would break and run. Training, discipline and the will to win were all ingredients in an army's victory.
Granicus
The Macedonian army, allies and mercenaries under King Alexander the Great.