Which Macedonian king is known for conquering the Persian Empire and is regarded as one of the greatest military leaders?

The Macedonian king known for conquering the Persian Empire and recognized as one of the greatest military leaders is Alexander the Great. His campaigns against Persia began shortly after he ascended to the throne in 336 BCE. Alexander’s military genius is evident in his ability to execute complex strategies and to lead his troops to victory in significant battles such as those at Granicus, Issus, and Gaugamela. His campaigns not only led to the downfall of the Persian Empire but also contributed to the spread of Greek culture and influence throughout the regions he conquered, marking the beginning of the Hellenistic Era. This historical impact and military success solidified Alexander's legacy as a formidable leader in world history.