Because it is surrounded on three sides by water - which is difficult to defend !
The Italian Peninsula
The Latins, battled with the Greeks and the Etruscans for control of the Italian peninsula
Greek
By the year 270 BC most historians will agree that Rome, through wars and treaties completed her long desired conquest & domination of the Italian peninsula.
Rome was initially settled by the Latin tribes and Etruscans.
Iberian peninsula Italian peninsula Greece peninsula
The Italian Peninsula
The Iberian Peninsula is much larger than the Italian Peninsula. The Iberian Peninsula is about 590,000 km2 in area, while the Italian Peninsula is only about 300,000 km2 in area.
Italian Peninsula's population is 26,171,000.
the Italian peninsula
The area of Italian Peninsula is 131,337 square kilometers.
The Italian Peninsula is divided from the rest by the Alps.
Iberian Peninsula, Italian Peninsula and Balkan Peninsula.
The Adriatic Sea is located to the East of the Italian peninsula
The Italian Peninsula
The Italian peninsula is in the center, and generally smaller than the Scandinavian peninsula. A similarity would be that they are both in the northeastern region of Europe.
Italian Peninsula's population is 26,171,000.