What happened to the third world nations who were not allied with the soviet union or the US? What are the benefits for them? What are possible disadvantages?

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The answer is D.reasserted its power and began aggressive military expansion.
Their Vision was to be the light that Guides Asian Continent. Their military expansion was aimed to the region with natural resources that they need since the Japanese had very little of them.
So, they launched invasions to regions such as Manchuria and the Philippines