the myceaneans were about along time before any of those other cultures
Athens and Sparta both had very efficient fighting forces and and were the two powerhouse cities in Greece.
The Dorians invaded Greece in 1000 BC
Sparta was a military state because the Dorians invaded Southern Greece (including Sparta, the rest of Laconia and Messenia) and took over all the original inhabitants which became Helot slaves. There were so many more Helots than Spartans that they rebelled. The rebellion was crushed but it alerted the Spartans to the fact that they needed to have an efficient fighting force to prevent it happening again. So it became a military state with all men (and women in a small degree) preparing for war.
When they conquered all of the southern Peloponnesian peninsula, the had a serf farming people to live off. They needed military strength to keep them under control, and to repel other city-states which coveted their territory.
The Dorians were the people who inhabited the land of Sparta. Six of their major city-states merged into one as their leaders all claimed they were descended from Herakles (aka Hercules). A man called Lycurgus created the Spartan way of life as they knew it sometime afterwards.
bob
The enemies are the Dorians and Troy.
The main cause of the Dark Ages was the Mycenaeans being conquered by the Dorians.
The ancient Greek were descended from the Mycenaeans, Aeolians, Arcadians, Ionians, Dorians.
Immediately afterwards the Greek Dorians and the Sea peoples moved in/through mainland Greece.
It was taken over by peoples moving in from the north (Dorians) and east (Sea peoples).
It would be helpful if you gave the three peoples you are interested in knowing about, as many peoples dominated Greece over several thousand years. One answer could be Achaeans, Dorians and Macedonians. Another could be Hellenes, Romans and Turks, etc etc.
The early Spartans, or Dorians, first entered Greece in about 1000 BCE. It is believed that they came in small groups, rather than a large force.
The Dorians conquered the Mycenaens because they had iron weapons and their swords were stronger. When the Dorians conquered the Myceaneans the Dark ages began.
They were descended from a warrior people called the Dorians who invaded Greece from the north, and they settled in the southern part of Greece, the Peloponnese, where they founded the city of Sparta.
Athens and Sparta both had very efficient fighting forces and and were the two powerhouse cities in Greece.
of course not the war was fought between basically the spartans and the trojans. I'm not really sure so check out the greek myth