I would argue they are needed and could help save lives, if tensions were to continue escalating as they seem to be now… Not just with Japan vs China, but also taking into account North Korea and their missile launches.
China has made more aggressive claims in the South and East China Seas, as well as completed their first aircraft carrier…
North Korea continues to (threaten to) launch missiles into the Japan Sea as well as continue developing their nuclear research.
Japan has built up their amphibious assault capabilities and has modified their their standing on collective self defense (legislation pending). But using drones for use in surveillance and missile launch detection…
To me, this doesn’t appear to be offensive in nature–especially if Japan keeps them unarmed. Are drones going beyond the reach of Japan’s peaceful standing? How realistic do you think Japanese and Chinese drones will be battling over the Senkakus as the article suggests?
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