To facilitate their commercial ventures, the Phoenicians established numerous colonies and trading posts along the coasts of the Mediterranean. Phoenician city states generally lacked the numbers or even the desire to expand their territory overseas. Few colonies had more than 1,000 inhabitants; only Carthage and some nearby settlements in the western Mediterranean would grow larger. A major motivating factor was competition with the Greeks, who began expanding across the Mediterranean during the same period. Though a largely peaceful rivalry, their respective settlements in Crete and Sicily did clash intermittently.