What empire Alexander the Great defeated in only 4 years

The Persians

His undermanned defeat of the Persian King Darius III at the Battle of Gaugamela is seen as one of the decisive turning points of human history, unseating the Persians as the greatest power in the ancient world and spreading Hellenistic culture across a vast new empire.

Hoped I helped

Put me on brainliest please cause I need it

s the president shall be commander in chief of the army and navy of the united states, and of the militia of the several states, when called into the actual service of the united states; he may require the opinion, in writing, of the principal officer in each of the executive departments. sooo yeahhh

explanation:

c. troops marched forward in close formation against newer, more accurate weapons