23 September 2025 Successful Trident II D5 Life Extension (D5LE) Launches Demonstrate Continued Readiness of Nation’s Sea-Based Deterrent ATLANTIC OCEAN - The U.S. Navy’s Strategic Systems Programs conducted four scheduled missile test flights of unarmed Trident II D5LE missiles from an Ohio-class ballistic missile submarine off the east coast of Florida from September 17-21. One launch test event Sunday evening lit up the night sky...