Establishment of forts, conflicts with local powers, and internal issues.
- Places: Goa, Colombo, Malacca, Socotra, Ormuz
- Battles: Conflict with Ottoman and Indian forces.
- Policies: Royal monopoly on eastern trade; governance and corruption.
- Rivalries: Competitions with Dutch and English East India Companies.
- Trades: Impact on Indian maritime trade routes.
- Merchandise: Silk, spices, drugs, firearms
- Reforms: Portuguese policy of naval dominance and fortification.