Owing to political considerations and the necessity of keeping open alternative means of communication between Europe and India, the importance of the Persian Gulf and Mesopotamia as a mail route was established nearly a century and a half ago. The ships of the old Indian Navy carried mail packets from Bombay to Basra, which was the starting-point of a regular dromedary post to Aleppo, linked with a horse post from Aleppo to Constantinople, and it is an interesting piece of history that Lord Nelson's letter to the Bombay Government, giving the news of the naval victory of the Nile, was transmitted by this route. During the first half of the last century, as the Persian Gulf and the Shat-el-Arab were infested with pirates, these waters were avoided by British trading vessels, so that, when a ship of the Indian Navy was not available to convey mails to Bombay, letters from the Political Residents of the East India Company stationed at Bagdad and Basra were sent to India by the desert route via Damascus and Beyrout and thence through Egypt, and correspondence between Bushire and India had to be diverted through Teheran and Alexandria. In 1862 a regular six-weekly mail service between Bombay and Basra was undertaken by the British India Steam Navigation Company, and about the same time the Euphrates and Tigris Steam Navigation Company agreed to extend the mail service from Basra to Bagdad by running their steamers in connection with the ocean line. The postal system at the coast ports, however, was defective owing to the absence of local post offices for the collection and distribution of mails, but these were gradually established from the year 1864 onwards at Bushire, Muscat, Bandar Abas, Bahrain, Mohammerah, and other places under the protection of British Consular officers, and post offices were opened at Bagdad and Basra in Turkish Arabia in 1868.