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Japan Is Building Cardboard Suicide Drones
(www.404media.co)
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It doesn't take much explosive to defeat infantry.
Sure, it isn't flying across the country to hit an installation like a Shahed, but it could function as a longer-range, loitering mortar round.
Lots of small payloads would be useful if you can put a lot of them in the right place: blast fragmentation, HEDP, thermobaric, smoke, illumination, etc.