The "Third World" was defined as the unaligned countries that the US and the Soviet Union were trying to bring into the fold, and thus became a political battleground. I Hope I could help! :)
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Explanation:
B as part of the Louisiana Purchase
Answer:
I think it should be answer choice A
Explanation:
The rest of the answers are about non-war things. Immigration, domestic military, trade. So the first option is the only one to do with foreign conflict.
The French and Indian War pitted the colonies of British America against those of New France, each side supported by military units from the parent country and by American Indian allies. 1754 – 1763