The planes carried bombs that exploded when the pilots crashed into targets.
Explanation:
They were part of Japanese Special Attacks Units from the military aviators. The attacks consisted of missions against Allied naval vessels to destroy more effectively the warships than with conventional air attacks. In order to achieve this, the pilots converted their planes into a flying bomb and crashed themselves into the ships.
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Soviet support for North Korea was also a way of legitimizing the Kim regime. It allowed them to gain access to raw material markets and political allies. They could trade to attempt ot get what they could not make.