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The U.S. Navy successfully tested four unarmed Trident II D5 missiles from a submarine, confirming the reliability of its sea-based nuclear deterrent.
The U.S. Navy successfully conducted four unarmed flight tests of Trident II D5 Life Extension missiles from an Ohio-class submarine off Florida’s coast September 17–21, 2025, confirming the reliability and readiness of the nation’s sea-based nuclear deterrent.
One launch was visible from Puerto Rico.
The tests, part of routine evaluations, involved submerged launches into the Atlantic with safety measures in place.
The Trident II D5, originally developed in the 1980s, remains operational through the 2040s after a 2017 life-extension program.
This marks the 197th successful test of the system, which is a key component of the U.S. nuclear triad.
The launches were not tied to global events and underscore ongoing efforts to maintain deterrence while advancing next-generation strategic systems.
La Armada de los Estados Unidos probó con éxito cuatro misiles Trident II D5 desarmados desde un submarino, confirmando la confiabilidad de su disuasión nuclear marítima.