To provide early-warning capabilities, as well as command and control, Japan has a fleet of America-sourced aircraft. Japan has four E-767 airborne warning and control system aircraft, and thirteen E-2C Hawkeye airborne early-warning aircraft. The JASDF is set to acquire the latest E-2D Hawkeyes to help deal with the growing number of air intercepts.

Kyle Mizokami is a writer based in San Francisco who has appeared in The Diplomat, Foreign Policy, War is Boring and The Daily Beast. In 2009 he cofounded the defense and security blog Japan Security Watch. You can follow him on Twitter: @KyleMizokami.

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