Where did the Dorian's invade the Mycenaean?

The Dorians invaded the Mycenaean civilization primarily in the southwestern part of Greece, particularly in regions such as the Peloponnese and parts of central Greece. This invasion, which is believed to have occurred around the 12th century BCE, contributed to the decline of the Mycenaean civilization and the onset of the Greek Dark Ages. The Dorian migration is often associated with the spread of new cultural practices and the eventual rise of city-states in ancient Greece.