Mainland Greece in ancient times was not part of the Persian Empire, though many Greek lands in what is now Turkey were conquered by Persia. It was Greek military resistance to two Persian invasions that kept it out of the Persian Empire.
The Persian empire.
The Roman Empire except for the eastern part of the Persian Empire.
It was the Persian Empire.
Greece did not conquer Phoenicia. Macedonian king Alexander took it over as part of his conquest of the Persian Empire in 334 BCE.
The Persian Empire failed by never taking over Greece.
The Persian Empire.
The Persian Empire took in Part of: Afghanistan, Arabia, Bulgaria, Greece, India, Pakistan, Russia, and Ukraine. The Persian Empire took in all of: Armenia, Azerbaijan, Georgia, Iraq, Iran, Israel, Jordan, Lebanon, Pakistan, Syria, Turkey, Egypt, Libya.
Greek city-states within the Persian Empire in Asia Minor were induced to revolt against Persian rule, and it expanded to include mainland Greece.
Alexander the Great.
Yes, under the Persian King Darius, Afghanistan was part of the Persian Empire because of his conquests for expanding the empire.
Only the Greek states of the Hellenic League (also called the League of Corinth by historians) which was a federation of most of the Greek states created by Alexander's father, Philip II of Macedon, and were vassals of Macedon, and the Kingdom of Epirus (in western Greece), an ally, had never been part of the Persian Empire. Even Alexander's own kingdom of Macedon, had been part of the Persian Empire. It had been a vassal state of the Persians for nine years (512-493 B.C.) and was conquered by the Persians in 492 B.C. and remained a fully subordinated part of the Persian Empire for thirteen years. The Thracian tribes Alexander's father, Philip II, had conquered had also been part of the Persian Empire
Alexander the great eventually destroyed the empire, and united it with Greece.