Core Viewpoint - The joint military training involving the United States, United Kingdom, and Japan has successfully seen F-35B fighter jets land on Japan's "Kaga" helicopter carrier, marking a significant milestone in Japan's military capabilities and international defense collaboration [1][3]. Group 1: Joint Military Training - The joint training took place from August 4 to 12 in the Western Pacific, involving naval forces from the US, UK, and Japan [3]. - The UK F-35B fighter jets landed on Japan's "Kaga" for the first time, while US F-35B jets had previously landed on both "Kaga" and its sister ship "Izumo" [3]. - The UK aircraft involved in the training came from the "Prince of Wales" aircraft carrier, which docked at the US military base in Yokosuka, Japan [3]. Group 2: Aircraft Deployment and Modifications - Japan's "Kaga" is undergoing modifications to become a fully operational aircraft carrier, expected to be completed by 2028, allowing it to carry approximately 20 F-35B stealth fighters [4]. - The first batch of F-35B fighter jets for the Japanese Self-Defense Forces was deployed, with three jets arriving from Guam to Miyazaki Prefecture on August 7 [3][4]. - The modification of the "Izumo" and "Kaga" is seen as a significant step for Japan in pursuing military normalization and enhancing its defense capabilities post-World War II [4].