What countries and peoples were conquered by Alexander the Great?

Among the countries and peoples conquered by Alexander the Great were Achaemenid Iran – the largest and most populous country at that time, part of India, Greek city-states in the Balkans and Asia Minor, etc. Most of the lands were part of Iran, and were not independent. For example Egypt, Babylon and many others. Bactria, Arachosia and Sogdiana in the east also submitted to Alexander. Hundreds of peoples entered his kingdom, of which the Iranian tribes, the highlanders of Bactria, the Egyptians, Arabs and Hindus were more significant.