Answer:
The North Vietnamese attacked the US Navy in the Gulf of Tonkin. This problem lead to the USA beginning to start the war.
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The Marshall plan was to help build up Western European nations due to the fact that communism spreads easiest in poverty stricken war torn countries. Then to make it worst Europe is a collective of several countries that are closest to America’s borders from the Atlantic, so to further containing communism in the east, they had to solidify the Democracy in the west.
Three aspects would technology, goverment and cultural diffusion hope this helps
Iron production since they can make guns
Democrats who were adamantly opposed to the Civil War were called Copperheads.
