what is the main importance of the islands of the mediterranean sea to the iberian, italian, and balkan peninsulas

Iberian Peninsula is one of the three major southern European peninsulas situated in the western most part of the Europe. The three major south European peninsulas are Iberian, Balkan, and Italian peninsulas

Explanation:

These South European peninsula is bordered by the Mediterranean sea in the east and west north and south west by Atlantic ocean. Iberian peninsula is also called Iberia.

It is located as a division in between Spain and Portugal. It is the second largest European peninsula after the Scandinavian peninsula but has large population when compared to Balkan peninsula.