Introduction
The 'Blue Water Policy' was introduced by Francisco de Almeida, the first Portuguese Viceroy in India (1505–1509), aimed at establishing Portuguese naval supremacy across the Indian Ocean. Rather than committing resources to building an expansive terrestrial empire, the doctrine focused on commanding critical sea lanes and monopolizing maritime trade.
The Blue Water Policy
Francisco de Almeida believed that Portuguese survival and prosperity in the East depended solely on sea power. The policy incorporated several defining components:
- Commercial Monopolization: The central goal was to dominate the spice trade routes between Asia and Europe by curbing Arab and Asian merchant fleets.
- The Cartaz System: Portugal enforced a maritime licensing mechanism where merchant vessels sailing through the Indian Ocean were mandated to purchase a pass (cartaz) and pay custom duties, failing which their cargo was confiscated or ships destroyed.
- The Battle of Diu (1509): Almeida cemented Portuguese maritime control by defeating a combined armada of the Mamluk Sultanate of Egypt, the Sultan of Gujarat, and the Zamorin of Calicut, securing undisputed dominance over the Arabian Sea.
Afonso de Albuquerque (1509–1515)
Regarded as the 'Real Founder of Portuguese Power in the East', Albuquerque altered Almeida's purely naval approach by acquiring fortified coastal settlements commanding strategic maritime choke points.
- Control of Geopolitical Choke Points: Albuquerque captured Goa from the Sultan of Bijapur in 1510, making it the principal seat of Portuguese administration. He subsequently seized Malacca (1511) to control the gateway to the Far East and spice islands, and captured Ormuz (1515) at the entrance of the Persian Gulf.
- Regional Diplomacy: He forged a friendly alliance with Krishnadevaraya of the Vijayanagara Empire by establishing a monopoly over the supply of Arabian horses to the empire.
- Socio-Cultural Interventions: To establish a permanent demographic base, Albuquerque encouraged Portuguese men to marry local Indian women. He abolished the practice of Sati within Goa and introduced New World agricultural crops including tobacco, cashew, and potato into the subcontinent.
Conclusion
While Francisco de Almeida's Blue Water Policy established Portuguese naval dominance in the Indian Ocean, Afonso de Albuquerque consolidated this advantage by securing strategic coastal footholds, providing the lasting administrative and geopolitical foundation for the Estado da Índia.