The Armies of Japan and United States are participating in the Rim of the Pacific (RIMPAC) exercise this month. Both will take the opportunity to launch surface-to-ship missiles during the biennial exercise.
By Rikujojieitai Boueisho （陸上自衛隊 / Japan Ground Self-Defense Force） [CC BY 4.0], via Wikimedia Commons
The press release from the U.S. Navy did not identify the type of missile to be fired by Japan. The U.S. Army will attempt to fire a Naval Strike Missile (NSM) from a launcher on the back of a Palletized Load System (PLS).