engage the Tyrian navy; and Alexander would probably have had to build an additional squadron had he not received, suddenly and unexpectedly, the adhesion of the princes of Cyprus. Cyprus, being an island, was as yet in no danger, and might have been expected at least to remain neutral until the fate of Tyre was decided; but, for reasons that history has not recorded, the petty kings of the island about this time--some months after the battle of Issus--resolved to desert Persia, to detach themselves wholly from Tyre, and to place their navy at the disposal of the Macedonians.[14391] The number of their triremes amounted to 120; and Alexander, having now under his command a fleet of 224 sail, could no longer feel any doubt of being able to wrest the supremacy at sea from the unfortunate Tyrians. Accordingly, after allowing his ships a period of eleven days for nautical practice, and placing on board a number of his bravest soldiers,[14392] Alexander sailed out from Sidon at the head of his entire fleet, and made straight for Tyre in order of battle. He himself in person commanded the right wing, the post of danger, since it held the open sea, and had under him the bulk of the Cyprian ships, with their commanders. Pnytagoras of Salamis and Craterus led the left wing, which was composed mainly of the vessels furnished by the Phoenician towns upon the mainland, and held its course at no great distance from the shore. The Tyrians, who had received no intelligence from without, saw with astonishment the great fleet, nearly three times as large as their own,[14393] bearing down upon them in orderly array, and challenging them to the combat. They had not now the spirit of ancient times, when no disparity of force dismayed them. Surprised and alarmed, they resolved to decline a battle, to remain within their ports, and to use their ships for blocking the entrances. Alexander, advancing from the north, when he saw the mouth of the Sidonian harbour, which faced northwards, strongly guarded, did not attempt to force it, but anchored his vessels outside, and established a blockade, the maintenance of which he entrusted to the Cyprian squadron. The next day he ordered the Phoenician ships to proceed southwards, and similarly block and watch the southern or Egyptian harbour.[14394] For himself, he landed upon the mole, and pitching his tent near the south-western corner, there established himself.[14395]