The governments of the United States and Japan are finalizing a formal agreement to co-develop a next-generation, ship-launched guided-missile interceptor designed to defeat long-range, hypersonic weapons during the glide phase, according to a senior U.S. military official. Missile Defense Agency Director Lt. Gen. Heath Collins said discussions with counterparts in Japan over potential collaboration on the Glide Phase Interceptor program “are maturing quite well.” “We’re looking to have a signed agreement in the coming months,” Collins said at the McAleese...