WORLD HISTORY

Detailed explanation-1: -In 334 B.C.E., Alexander invaded Persia, which lay across the Aegean Sea in Asia Minor (modern-day Turkey). After three grueling years of warfare and three decisive battles, Alexander smashed the Persian armies at the Tigris River and conquered the mighty Persian Empire, including the legendary city of Babylon.

Detailed explanation-2: -Battle of Issus, (333 bce), conflict early in Alexander the Great’s invasion of Asia in which he defeated a Persian army under King Darius III. This was one of the decisive victories by which Alexander conquered the Achaemenian Empire.

Detailed explanation-3: -The Battle of Issus, in which Alexander the Great secured a decisive victory over Darius III of Persia.