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PACIFIC OCEAN (Sept. 28, 2023) An unarmed Trident II D5LE missile launches from the Ohio-class ballistic missile submarine USS Louisiana (SSBN 743), marking a successful Demonstration and Shakedown Operation-32 (DASO-32) off the coast of San Diego, California, Sept. 28, 2023. The primary objective of a DASO is to evaluate and demonstrate the readiness of the SSBN's Strategic Weapon System (SWS) and crew before operational deployment following the submarine's engineered refueling overhaul. DASO-32 is the last DASO conducted by an Ohio-class SSBN coming out of engineering refueling overhaul (ERO), marking the completion of all post-ERO DASOs for the Ohio-class SSBNs. The Trident II D5LE strategic weapon system is the system that will provide the initial SWS capability for the Columbia-class SSBN. (U.S. Navy Photo by Mass Communication Specialist 3rd Class Kevin Tang)