The Persians were conquered quite brutally at three distinct points in history:
The ancient Egyptians were conquered in 332Bc by Alexander The Great and his men, The Romans, and also the Hysksos .
About 600 B.C., the Medes conquered the Persians.
Arabs
Alexander the Great.
The Lydian Empire.
Macedonia
Just about everybody. Some conquerors include: the Assyrians, the Babylonians, the Egyptians, the Persians, the Hellenic Greeks, the Romans, etc.
The Hellenistic period followed Alexander the great conquered of the Persian empire. including Egypt The Greeks founded cities in the conquered areas which led to Greek influence on the Persians and Egyptians. At the same time the Persians and Egyptians had some influence on the Greeks. An Indo-Greek kingdom was formed. In Egypt the Greek ruling dynasty, the Ptolemies) portrayed themselves as pharaohs and adopted elements of Egyptian culture. In the Indo-Greek kingdom some kings converted to Buddhism
Notably the Persians, Minoans and the Egyptians.
The Persian Empire incorporated Libyans, Egyptians, Phoenicians, Greeks, Mesopotamians, Medes, Persians, Indians and several other lesser peoples.
The Persian Wars pitted the Persians against the mainland Greeks. Eventually, the Greeks won after defeating the Persians by land and sea in the Second Persian War. Later, the Macedonian Geeks, under Alexander the Great, invaded and conquered the Persian Empire.
Egyptians, Persians, Greeks, Romans.
The neighbors of the Phoenecians wer the Assyrians, Babylonians, Persians, Egyptians, Greeks and Romans and Hebrews..
The Persian Empire incorporated Libyans, Egyptians, Phoenicians, Greeks, Mesopotamians, Medes, Persians, Indians and several other lesser peoples.
Many groups ruled over the Hebrews: Egyptians Persians Babylonians Romans Assyrian Greeks Muslims Catholics Russians Nazis
Jews, Romans, Greeks, Persians, Indians, Chinese, Mesapotamians, Egyptians, Japanese.......
Many more than 5 empires conquered the Hebrews. See the inexhaustive list below: Egyptians Babylonians Persians Assyrian-Greeks Romans Muslims Spain Nazis Bolsheviks
The Greeks had superior armor and tactics than did the Persians .