In this condition matters remained till about the year B.C. 351, when Sidon, feeling herself aggrieved by the conduct of the Persian authorities at Tripolis,[14334] where the general assembly of the Phoenicians held its meetings, boldly raised the standard of revolt against Persia under Tennes, or Tabnit II., and induced the Phoenicians generally to declare themselves independent. Alliance was at once formed with the Egyptian king, Nekht-nebf, or Nectanebo II., who sent a body of 4,000 Greek mercenaries, under Mentor the Rhodian, to the aid of Tennes.[14335] Hostilities commenced by the Phoenicians expelling or massacring the Persian garrisons, devastating the royal park or paradise, and burning the stores of forage collected for the use of the Persian cavalry.[14336] An attempt made by two satraps--Belesys of Syria and Mazæus of Cilicia--to crush the revolt was completely defeated by Tennes, with the aid of Mentor and his Greeks, who gained a decisive victory over the satraps, and drove the Persians out of Phoenicia.[14337] Cyprus then joined the rebels. The nine principal cities made common cause, expelled the Persians, and declared themselves free states, under their respective native kings.[14338] Ochus, the Persian king, was at last roused to exert himself. Collecting an army of 300,000 foot and 30,000 horse, supported by 300 triremes and 500 transports or provision-ships,[14339] he proceeded to the west in person, determined to inflict condign punishment on the rebels, and to recover to the empire, not only Cyprus and Phoenicia, but also the long-lost Egypt.