Japan plans to buy 147 F-35s, including 42 F-35Bs, over the next decade and labelled the "most-lethal acquisition in the Air Force's history".
The step is a major shift in Japan's post-war naval defence, which has lacked aircraft-carriers in part out of concerns that they may remind Japan's Asian neighbours of-aggression by Japan's Imperial Navy.
source: https://goo.gl/be8DCW