The Mediterranean Sea.
Sea trade.
It developed a formidable war fleet to protect its expanding sea trade.
Trade around the Mediterranean Sea and with Mesopotamia.
In Lebanon and Syria, they had ready made seaports. Similarly when they colonised Carthage in Tunisia.
They established war fleets.
Carriage trade - shipping products between the places they traded with around the Mediterranean Sea.
With Egypt and Phoenicia, and with the various peoples of Asia Minor and the Black Sea.
Through sea trade.
It was the main trader around the Mediterranean Sea.
phoenicians chose the sea for trading because phoenicia's overland trade routes were blocked by mountains and hostile neighbors.
Phoenicia derives from the ancient Greek word phoínios meaning "purple" - the colour of its popular dye made from sea snails.
Phoenicia was today's Lebanon, mountainous, which drew an expanding population to trade to support itself.