Fort San Luis was the first of three Spanish fortifications constructed to protect the anchorage at Apra Harbor. The fort was constructed on the northern

Fort San Jose, built about 1805, was the third of four Spanish fortifications built in the southern village of Humåtak/Umatac. The fort was constructed atop

In order to protect Spain’s interests in Guam and its Pacific trade routes, several fortifications were constructed to defend the island. Beginning with the first