Roman Civilization was founded on top of seven different hills due to strategic military placement which lead to very fertile valleys. Being on top of a mountain meant any attackers had to fight their way up which gave the romans a huge advantage. Two specific mountain ranges, the Alps and the Apennines were their main protection from invasion. From its position in the center of the mediterranean Rome even further benefited by becoming a center for trade. With Greece being about 50 miles away from the italian peninsula and sicily being 100 miles away from Africa, Rome became the center of trade.