In 1939, Major George C. Kenney surveyed 42 potential air base sites across Puerto Rico and chose Punta Borinquen as the best. The government purchased 3,796 acres of sugar cane farms for $1,215,000 that September. What the official records note only in passing is that the land was also home to Poblado San Antonio, a community whose residents were expropriated -- forced from homes they had known for generations. Major Karl S. Axtater took command of what became Borinquen Army Airfield, and by the 1940 census, 942 military personnel were on the rolls. During World War II, the base hosted bombardment squadrons flying Douglas B-18 Bolos on anti-submarine patrols across the Caribbean, guarding the sea lanes that connected the Panama Canal to the Atlantic convoy routes.

When the Air Force became independent in 1947, the base was renamed for Brigadier General Howard Knox Ramey and placed under Strategic Air Command. The Cold War transformed this Caribbean outpost into a forward nuclear position. The 72nd Strategic Reconnaissance Wing operated RB-36 Peacemakers -- ten-engine behemoths so large that the runway required 870-foot blast pads at each end and 50-foot shoulders on both sides. Accommodating these aircraft demanded a second expropriation of Poblado San Antonio, displacing 4,000 residents to the community's current location in Montana. When the B-52 Stratofortress replaced the B-36 in 1959, Ramey became one of SAC's key Caribbean deterrence platforms, its bombers and KC-135 tankers maintaining the round-the-clock alert posture that defined the nuclear standoff.

While bombers dominated the airfield above, the Navy operated a secret installation on the beach below the cliff. Naval Facility Ramey, commissioned on September 18, 1954, was one of the first stations in the Sound Surveillance System -- SOSUS -- a classified network of underwater hydrophone arrays designed to detect Soviet submarines. Officially described as supporting "oceanographic research," the facility's true purpose was hidden behind the deliberately vague name "Naval Facility" and restricted on a strict need-to-know basis. The shore terminal processed signals from undersea arrays that could track submarine movements across vast stretches of ocean. When the Air Force base closed in 1974, the Naval Facility became self-supporting as Naval Facility Punta Borinquen until its decommissioning in April 1976. The SOSUS program it helped pioneer evolved into the Integrated Undersea Surveillance System, which remains in use today.

The closure of Ramey AFB began in 1971 as part of a SAC-wide drawdown and was complete by 1973. What followed was a gradual transformation rather than abandonment. The Coast Guard relocated its aviation activities from Naval Air Station Isla Grande in 1971, eventually establishing Coast Guard Air Station Borinquen in 1976 with a hangar, housing, and the old DoDEA school. The Puerto Rico Air National Guard maintains the Punta Borinquen Radar Station near the base's golf course, home to the 141st Air Control Squadron. Army Reserve and National Guard units occupy other former military facilities. The old Punta Borinquen Lighthouse, once a navigational aid, became Coast Guard guest housing. And the runway -- that immense Cold War runway -- now serves commercial flights as Rafael Hernandez Airport, its concrete still rated for the heaviest loads the military ever asked it to bear.

From the air, Ramey's footprint is unmistakable: the vast runway pointing northwest toward the open Atlantic, the orderly grid of former military housing, the Coast Guard facilities clustered near the cliff edge. The base sits where Puerto Rico's northern and western coastlines meet, a geographic position that made it strategically valuable for Caribbean defense and now makes it a scenic approach for commercial pilots. Below the cliffs, the beach where SOSUS cables once ran ashore looks like any other stretch of Caribbean sand. The community of Aguadilla has grown around and through the old base, filling former military spaces with civilian life while the military presence -- smaller, quieter, but persistent -- continues in its corners.