Naif Alsalem Alexander the Great is also widely known as Alexander III of Macedon. He was the successor of his father, Philip II, to the kingship of the Ancient Greek when he was twenty years old. Most of his time in ruling was spent on unprecedented military campaign through Northeast Africa and Asia. Alexander the Great always won in combat, and he is considered one the most triumphant military commanders in history. This paper discusses the accomplishments of Alexander the Great as one of the world’s greatest military leaders (Nawotka, 2012). After his father’s death, Alexander assumed his leadership position at the tender age of twenty. He inherited an experienced army and a strong kingdom. He was determined to conquer his enemy and expand his territory. He overthrew kingdoms such as that of Persian King Darius III a win that saw his kingdom stretch to Indus River from the Adriatic Sea. Alexandria earned his authority by conquering his enemies in the battlefield. He founded many cities especially in Egypt some of which were named after his name. In India, he defeated a city and had it named after a horse (Nawotka, 2012). He upgraded his military and went ahead to discover trade routes to and in Asia. Eventually, Alexander had conquered half of all that was known as the world at that time. In conclusion, Alexander the Great was a great military leader. In fact, he was one of the greatest military commanders ever to live. He took over and dominated many empires from Asia, Africa and Europe. Looking into Alexander the Great helps one understand the history in the light of the strategies leaders employed to make sure they won in battle and expanded their territories. WHY WAS ALEXENADER CONSIDERD GREAT IN ANCCIENT TIMES ? .