Defense News in Brief: Successful Trident II D5 Life Extension (D5LE) Launches Demonstrate Continued Readiness of Nation’s Sea-Based Deterrent

Source: United States Navy

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 and was visible from Puerto Rico.

Defense News in Brief: USS America Enhances Joint Readiness with Army and Marine Corps Rotary-Wing Operations

Source: United States Navy

Amphibious assault ship USS America (LHA 6) concluded joint aviation training with the U.S. Army and U.S. Marine Corps, boosting interoperability and readiness in the Indo-Pacific region. On Sept. 7 and 11, 2025, off the coast of Pearl Harbor, America served as a floating airfield for rotary-wing aircraft from the Army’s 25th Combat Aviation Brigade (CAB) and Marine Corps’ Marine Medium Tiltrotor Squadron (VMM) 268.

Defense News in Brief: Japan, the Philippines and the U.S. Conduct Maritime Cooperative Activity

Source: United States Navy

SOUTH CHINA SEA — The combined armed and defense forces of Japan, the Philippines and the United States, demonstrating a collective commitment to strengthen regional and international cooperation in support of a free and open Indo-Pacific, conducted a Multilateral Maritime Cooperative Activity (MCA) within the Philippines’ Exclusive Economic Zone, Sept. 11-13, 2025.