The Cold War was a period of 40 years which during, tension was extremely high between both nations.
Answer:
People began to get scared
Explanation:
Americans were unfamiliar with the territories of Vietnam and ended up having to search manually, house by house, allowing the Viet Cong to dig escape tunnels and snipe American soldiers.
It was the war that gave birth to modern warfare, introducing machine guns, artillery, and chemical weapons. With new technology, came the need for new tactics and old generals didn't do that, which led to the meat grinder of trench warfare.
