The United States and Japan have estimated the total cost of jointly developing a new type of missile capable of intercepting hypersonic weapons will exceed $3 billion, a Defense Department official says.
North Korea raps Japan's plan to move the deployment of domestically made long-range missiles forward to an earlier date, with its state media saying Tokyo's military moves for a "reinvasion" have reached a very grave phase.
North Korea fired a rocket carrying a spy satellite on May 31, but the launch failed due to engine trouble, its official Korean Central News Agency said.