 US Navy's Carrier Strike Group 1, participates in trilateral exercise. Ships from the Japan Maritime Self-Defense Force, the Republic of Korea Navy, and the US Navy's Carrier Strike Group, CSG-1, transit together during a trilateral exercise. The exercise allowed maritime forces from Japan, Republic of Korea, and US to train, together to enhance coordination on maritime domain awareness, and other shared security interests. CSG-1 is deployed to the US 7th Fleet Area of Operations in support of a free and open Indo-Pacific region.