Answer:
This is what I found.
Alexander the Great, also known as Alexander III of Macedon, was a king of the ancient Greek kingdom of Macedon. He is considered one of the most successful military leaders in history and is known for his conquests in the Persian Empire, Egypt, and parts of India.
Some historians have described Alexander as a genius military strategist and a charismatic leader who inspired great loyalty in his troops. Others have criticized him for his brutal tactics and his tendency to treat conquered peoples harshly.
Ancient Greek historian Plutarch, who wrote a biography of Alexander, praised him as a great leader and a military genius who conquered vast territories and spread Greek culture throughout the world. However, he also criticized Alexander for his excessive drinking and his tendency to rely on force rather than diplomacy.
The Roman historian Arrian, who also wrote a biography of Alexander, praised him for his military skills and his ability to lead his troops to victory despite overwhelming odds. He also praised Alexander for his ability to adapt to different cultures and his efforts to unify the people he conquered.
Others historians such as Diodorus of Sicily and Curtius Rufus, also wrote about Alexander and his deeds, but their works are not entirely preserved.
In summary, Alexander the Great is considered one of the most successful military leaders in history, and his legacy is celebrated by some as a great conqueror and a unifying figure, but also criticized by others for his brutal tactics and his tendency to treat conquered peoples harshly.