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July 14, 2025
TACHYON ECHO 25-2 strengthens combined Technical Effects integration across Tri-Command
From July 8 to 11, U.S. Forces Korea hosted TACHYON ECHO (TE) 25-2, a Tri-Command Technical Effects Tabletop Exercise (TTX) with over 100 participants from United Nations Command, Combined Forces Command, and U.S. Forces Korea (USFK) Command. This latest iteration builds on momentum from previous exercises and further develops the Tri-Command’s ability to integrate combined-joint, all-domain operations (CJADO) capabilities in support of regional deterrence and readiness. Maj. Gen. William Taylor, Operations Director for the Tri-Command, oversaw the effort and highly emphasized that “keeping the momentum on continual refinement of our CJADO, while staying ahead of our adversaries, is paramount for success as well as stability in the region going forward.”
July 11, 2025
Japan, Republic of Korea and U.S. conduct trilateral flight
Fighter aircraft from Japan and the Republic of Korea conducted a trilateral escort flight of U.S. bombers operating in the Pacific, July 11, 2025.
Republic of Korea-United States-Japan Trilateral Chiefs of Defense Joint Press Statement
Seoul, Republic of Korea — Republic of Korea (ROK) Chairman of the Joint Chiefs of Staff, Adm. Kim Myung-soo, U.S. Chairman of the Joint Chiefs of Staff, Gen. Dan Caine, and Japan Chief of Staff, Joint Staff Gen. Yoshida Yoshihide convened the 22nd Trilateral Chiefs of Defense (Tri-CHOD) Meeting on July 11, 2025, in Seoul. The three chiefs of defense recognized the importance of close trilateral cooperation in addressing security challenges on the Korean Peninsula, in the Indo-pacific and beyond.