It was, of course, a very serious question with Alexander, as his route lay now through Phoenicia and in the neighborhood of Tyre, what he should do in respect to such a port. He did not like to leave it behind him and proceed to the eastward; for, in case of any reverses happening to him, the Tyrians would be very likely to act decidedly against him, and their power on the Mediterranean would enable them to act very efficiently against him on all the coasts of Greece and Asia Minor. On the other hand, it seemed a desperate undertaking to attack the city. He had none but land forces, and the island was half a mile from the shore. Besides its enormous walls, rising perpendicularly out of the water, it was defended by ships well armed and manned. It was not possible to surround the city and starve it into submission, as the inhabitants had wealth to buy, and ships to bring in, any quantity of provisions and stores by sea. Alexander, however, determined not to follow Darius toward the east, and leave such a stronghold as this behind him.