Atlantic Ocean – The U.S. Navy’s Strategic Systems Programs (SSP) successfully conducted four planned test flights of unarmed Trident II D5 Life Extension (D5LE) missiles from an Ohio-class ballistic missile submarine operating off the coast of Florida between September 17-21. One launch on Sunday night lit up the sky and was visible as far as Puerto Rico.
These recurring tests are carried out on a scheduled basis to verify the continued reliability and accuracy of the missile system. The Navy emphasized that the launches were not in response to any current world events.
With this series of launches, the Trident II D5 program has now achieved 197 successful test flights. The missiles were launched from a submerged SSBN and impacted within a designated area of the Atlantic Ocean. In line with safety procedures, Notices to Airmen (NOTAMs) and Notices to Mariners (NOTMARs) were issued in advance to keep the test area clear.
Originally developed in the 1980s and modernized in 2017, the Trident II D5 remains one of the most precise and dependable strategic weapon systems in service, now extended to operate well into the 2040s.

“Our submarine-launched ballistic missile system has been a vital element of U.S. national security since the 1960s,” said Vice Adm. Johnny R. Wolfe, Director of SSP. “These launches once again demonstrate the credibility and reliability of our strategic deterrent.”
Wolfe noted that routine flight testing is central to ensuring that the system remains ready if ever required, calling it a cornerstone of America’s “Peace through Strength” strategy. He also highlighted ongoing efforts to develop the next-generation sea-based deterrent to maintain future capability.
SSP is responsible for the full lifecycle management of the Navy’s submarine-launched ballistic missile systems, overseeing training, maintenance, and system upgrades to guarantee the safety, security, and effectiveness of the Trident II D5LE deployed aboard Ohio-class SSBNs.
