How and why did the Vietnam War divide America?

Opposition to the war in the United States bitterly divided Americans  even after President Richard Nixon ordered the withdrawal of U.S. forces in 1973 Communist forces ended the war by seizing control of South Vietnam in 1975, and the country was unified as the Socialist Republic of Vietnam the following year.

Vietnam would be divided by a demilitarised zone (the DMZ), with the French withdrawing their forces from Vietnam north of the zone and the Viet Minh withdrawing their forces from the south. ... Before long Diem's authoritarian regime was challenged by local communists, backed by the regime in North Vietnam.

1. where does the energy of a nuclear power plant come from?

d) political bosses should not hold office