The Ozone layer, which mostly lies on the lower portion of the stratosphere.
How Long Did The Vietnam War Last. The Vietnam War is the longest war ever to have taken place in the American history. It lasted for 16 years and it was terrible for the Americans at that time as the Civil Rights campaign was at its peak and so also the Vietnam War and anti war protests.
Best Answer: The Vietnam War, also known as the Second Indochina War, the Vietnam Conflict or the American War, was a Cold War military conflict that occurred in Vietnam, Laos, and Cambodia from September 26, 1959, to April 30, 1975.est Answer: The Vietnam War, also known as the Second Indochina War, the Vietnam Conflict or the American War, was a Cold War military conflict that occurred in Vietnam, Laos, and Cambodia from September 26, 1959, to April 30, 1975.