Reuters
Katsuya Yamamoto & Adam M. Aycock, National Interest: Why Don’t Japanese and Taiwanese Militaries Talk to Each Other?
Only one of Japan's neighbors cannot communicate smoothly with their defense authorities: Taiwan.
On June 8, 2018, Japan and China launched a communication mechanism between their defense authorities to avert accidental clashes in the air and on the sea. This is a huge achievement for the two countries, but it still leaves a major outlier, which has direct security relevance for Japan. In fact, the only remaining neighbor who cannot communicate smoothly with other defense authorities is Japan’s neighbor to the southwest: Taiwan.
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WNU Editor: Here is an easy prediction. Because of history and current international relations, Japan and Taiwan are not going to correct this lack of "military communication" between both countries. I think this is a mistake. Unfortunately .... no one is focused on it, and the country that is (and will) benefit the most is China and its long term approach of taking Taiwan.