Once Japanese ISR assets detect North Korean mobile launchers in the wild, they will have to be quickly destroyed. The urgency of the antimissile campaign means that North Korean air defenses may not be adequately suppressed, making missions over the country risky.MQ-9 Reaper medium-altitude long-endurance drones[3] could fly such missions instead, taking off from Japan loaded with fuel and munitions and flying long patrols over North Korea.
A country oriented towards pacifism and having disavowed war as an instrument of national policy, Japan is about as dissimilar from North Korea as one can get. Unfortunately for Tokyo, the two are separated by as little as 336 miles of water, and Pyongyang frequently threatens to attack its former colonial master. Now, as North Korea ruthlessly forges ahead with nuclear weapons and ballistic-missile technology, the threat to Japan has crystallized: the country once again faces the prospect of nuclear attack.