(FILES) This file photo taken on October 24, 2010 shows air defence artillery units of Japan's Ground Self-Defense Force (GSDF) being displayed on parade at Camp Asaka in suburban Tokyo. - Japan announced on December 16, 2022 its biggest defence overhaul in decades, hiking spending, reshaping its military command and acquiring new missiles to tackle the threat from China. (Photo by Kazuhiro NOGI / AFP)