Dutch Attack on San Juan: Boudewijn Hendricksz (1625)

The 1625 Dutch attack on San Juan was the most destructive of the major European assaults on Puerto Rico — and it revealed the island's role as a military asset rather than a colony valued for its people.

Context: Puerto Rico was one of Spain's key Caribbean fortifications. El Morro fortress guarded the entrance to San Juan Bay. The island had already survived attacks by Sir Francis Drake (1595, repelled) and the Earl of Cumberland (1598, briefly occupied).

The Attack: In September 1625, Dutch captain Boudewijn Hendricksz arrived with 17 ships and approximately 2,500 men. He landed east of San Juan and attacked the city from the land side, bypassing El Morro's seaward guns. The Spanish garrison, led by Governor Juan de Haro, retreated into El Morro.

The Siege: Hendricksz occupied and burned much of San Juan, including the bishop's library — one of the most significant collections of documents in the Caribbean, including irreplaceable records of early colonial history. The Dutch held the city for nearly a month but could not breach El Morro.

Repulsion: Criollo militias and reinforcements from the interior harassed the Dutch forces. Hendricksz eventually withdrew after failing to take El Morro, having burned the city but gained nothing permanent.

Significance:
1. The burning of San Juan destroyed irreplaceable historical records — an early form of cultural destruction
2. Spain's response was to invest heavily in fortifications (La Fortaleza, El Morro, San Cristóbal), making Puerto Rico one of the most heavily fortified islands in the Americas
3. The defense was led by Puerto Rican criollos, not just Spanish soldiers — an early expression of local identity
4. The pattern established Puerto Rico's role as a military asset: valuable for its strategic position, not for its people's welfare

The fortifications built in response to Dutch, English, and French attacks would later serve American military purposes — a seamless transfer of Puerto Rico's role from Spanish to American fortress.