Ottoman naval expeditions in the Indian Ocean

The Ottoman naval expeditions in the Indian Ocean (Modern Turkish: Hint seferleri or Hint Deniz seferleri, lit. "Indian Ocean campaigns") were a series of Ottoman amphibious operations in the Indian Ocean in the 16th century. There were four expeditions between 1538 and 1554, during the reign of Suleiman the Magnificent.

After the voyages of Vasco da Gama, a powerful Portuguese Navy took control of the Indian Ocean in the early 16th century. It threatened the coastal cities of the Arabian Peninsula and India. The headquarters of the Portuguese Navy was in Goa, a city on the west coast of India, in 1510.

Ottoman control of the Red Sea meanwhile began in 1517 when Selim I annexed Egypt to the Ottoman Empire after the Battle of Ridaniya. Most of the habitable zone of the Arabian Peninsula (Hejaz and Tihamah) soon fell voluntarily to the Ottomans. Piri Reis, who was famous for his World Map, presented it to Selim just a few weeks after the sultan arrived in Egypt. Part of the 1513 map, which covers the Atlantic Ocean and the Americas, is now in the Topkapı Museum. The portion concerning the Indian Ocean is missing; it is argued that Selim may have taken it, so that he could make more use of it in planning future military expeditions in that direction. In fact, after the Ottoman domination in the Red Sea, the Turco-Portuguese rivalry began. Selim entered into negotiations with Sultan Muzaffar II of Gujarat, (a sultanate in North West India), about a possible joint strike against the Portuguese in Goa. However Selim died in 1520.

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