The movement was thus successfully localised on the European continent, and further afield it was still more easily cut short. After the withdrawal of the Turkish squadron, the Greek fleet had to look on at the systematic destruction of Kydhonies,[1] a flourishing Greek industrial town on the mainland opposite Mitylini which had been founded under the sultan’s auspices only forty years before. All that the islanders could do was to take off the survivors in their boats; and when they dispersed to their ports in autumn, the Ottoman ships came out again from the Dardanelles, sailed round Peloponnesos into the Korinthian Gulf, and destroyed Galaxídhi. A still greater catastrophe followed the reopening of naval operations next spring. In March 1822 the Samians landed a force on Khios and besieged the Turkish garrison, which was relieved after three weeks by the arrival of the Ottoman fleet. A month later the Greek fleet likewise appeared on the scene, and on June 18 a Psariot captain, Constantine Kanaris, actually destroyed the Ottoman flag-ship by a daring fire-ship attack. Upon this the Ottoman fleet fled back as usual to the Dardanelles; yet the only consequence was the complete devastation, in revenge, of helpless Khios. The long-shielded prosperity of the island was remorselessly destroyed, the people were either enslaved or massacred, and the victorious fleet had to stand by as passively this time as at the destruction of Kydhonies the season before. In the following summer, again, the same fate befell Trikéri, a maritime community on the Gulf of Volo which had gained its freedom when the rest of Thessaly stirred in vain; and so in 1823 the revolution found itself confined on sea, as well as on land, to the focus where it had originated in April 1821. [Footnote 1: Turkish Aivali.] This isolation was a practical triumph for Sultan Mahmud. The maintenance of the Ottoman Empire on the basis of Moslem ascendancy was thereby assured; but it remained to be seen whether the isolated area could now be restored to the _status quo_ in which the rest of his dominions had been retained.