Era of Piracy and Contraband Trade (1500s-1700s)

From the 16th through the 18th centuries, Puerto Rico occupied a paradoxical position in the Spanish Empire: strategically vital as a military outpost guarding the entrance to the Caribbean, yet economically neglected and its residents impoverished by Spain's restrictive trade monopoly.

Military Attacks:
- 1528: French corsairs attack and burn San Germán
- 1595: Sir Francis Drake attacks San Juan with 27 ships; repelled
- 1598: George Clifford, 3rd Earl of Cumberland, captures San Juan (held for 3 months before disease forced withdrawal)
- 1625: Dutch Captain Boudewijn Hendricksz attacks and burns much of San Juan
- 1797: Sir Ralph Abercromby leads a British invasion force of 60 ships; repelled by Puerto Rican militia under Governor Ramón de Castro

The Contraband Economy: Spain's trade monopoly restricted Puerto Rico to trading only with designated Spanish ports. This meant basic goods were either unavailable or prohibitively expensive. Puerto Ricans — from peasants to colonial officials — turned to contraband trade with Dutch, English, French, and Danish traders.

Contraband became the true economic lifeline of the island, particularly in the south and west coasts far from San Juan's colonial oversight. Historians estimate that contraband trade exceeded legal commerce for much of the colonial period.

El Situado Mexicano: Spain funded Puerto Rico's military garrison through an annual subsidy (situado) from the viceroyalty of New Spain (Mexico). When this payment was late or missing — which was frequent — the garrison and the island went without. This dependence on external subsidy set a colonial pattern that continues today with federal transfer payments.

The fortress of San Felipe del Morro and San Cristóbal, built over centuries to defend against these attacks, remain standing today as UNESCO World Heritage Sites — monuments to both Spanish military engineering and Puerto Rico's strategic exploitation.