Why Alexander the Great began a campaign against Persia, how did it end? Give dates for major events.

The trek to the east began in 334 BC. In the same year, the first skirmish between the troops of Alexander and the Persians took place in the battle of Granicus. Then in 333 BC there was a battle on the Issa River, where Alexander first defeated Darius 3. Then Alexander’s troops occupied Egypt. So in 332 BC he became an Egyptian pharaoh, that is, he was proclaimed a god by the Egyptian priests. In 331 BC, he resumed his military campaign. In the same year, there was a decisive battle with the troops of Darius 3. The battle took place at Gaugamela. This battle was Alexander’s great triumph. King Darius 3 fled, and Macedonian triumphantly entered Babylon, which became its new capital. In the period from 331 to 327 BC, Alexander’s troops completely captured the remnants of the empire.