Why the Ottoman Empire failed to break Portugal's monopoly on Indian Ocean trade
Despite possessing greater wealth, population, and proximity to the Indian Ocean, the Ottoman Empire could not dislodge the Portuguese from their maritime dominance. This decades-long struggle, spanning from 1538 to 1560, forced the Ottomans to abandon direct naval confrontation and settle for a tense, partitioned status quo.
The conflict originated from the Portuguese capture of Goa in 1510 and their subsequent control of Indian Ocean trade routes. As the spice trade shifted from the Red Sea to the Atlantic, the Ottomans sought to protect their economic interests. Following the annexation of Egypt in 1517, the Ottomans began building an 'Indian fleet' in Suez, as their Mediterranean navy could not be transferred to the Red Sea.
Major hostilities erupted in 1538 when the Ottomans supported the Sultanate of Gujarat in a failed siege of the Portuguese-held city of Diu. Throughout the following decades, Ottoman admirals like Hadim Suleiman Pasha and Piri Reis launched expeditions to challenge Portuguese control in the Persian Gulf and Red Sea. Despite some territorial gains in Yemen and East Africa, these naval campaigns were largely unsuccessful. The Portuguese, led by figures like Estêvão da Gama and Dom Diogo de Noronha, consistently repelled Ottoman incursions, notably at the Battle of the Strait of Hormuz in 1553.
The inability to project power effectively was compounded by logistical challenges and the lack of a direct canal between the Mediterranean and the Red Sea. While the grand vizier Sokollu Mehmed Pasha later proposed such a project, it remained beyond 16th-century engineering capabilities. By 1560, the Ottomans shifted their strategy, focusing on securing the Red Sea and supplying Portuguese enemies rather than seeking a decisive naval victory. This led to a de facto truce: the Portuguese dominated the sea, while the Ottomans maintained control over vital overland trade routes into Europe.
