The Japanese government also believes that North Korea may well attack the country. However, in this case, Japan may not wait for US support, since this already happened in 2010, when the White House was able to convince South Korea not to retaliate against North Korea. In addition, now North Korea has a weapon against the United States – ballistic missiles capable of reaching the mainland. Overall, some Japanese experts doubt that the US can be trusted and that Japan-US cooperation will be sustainable.
At the same time, Japan in any case will be forced to act together with the United States, even if it has the opportunity to attack enemy bases.
Most military experts and politicians believe that North Korea is unlikely to suddenly attack Japan. However, the Japanese side is obviously trying to create its own version of insurance against such an attack.