Why is the vietnam war and example of a proxy war?

Explanation: the Vietnam War can be considered a "proxy" war in the Cold War. Although the Soviet Union and the United States did not directly go to war, they each supported a different side in the war. The Viet Cong were Vietnamese rebels in the South who fought against the Southern Vietnam government and the United States.

answer; /// the correct answer is evidence of the olmec civilization has been found in southern american in a hot steamy forest, archaeologists have found earthen artifacts at several sites that were evidence of the olmec civilization. these   artifacts were mounds,courtyards and pyramids build of stones, also on top of the mounds were many monuments made of stone, some of these stone structures are very large, they weigh as much as 44

b.   jim crow laws were enacted in northern states.