Answer:
I think it was a threat but not one of the main ones
By means of excavations and the study of the areas that lived in as well as the careful study of there remains to study there health and if there where identifiable diseases that they suffered and other things of this nature <span />
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The Korean War ended with the division of Korea into North (communist) and South Korea (anti-communist). The Vietnam War ended with the invasion of South Vietnam in 1975 by the communist North following the withdrawal of Western (especially American) support for South Vietnam.