It rose from the ruins of Ancient Greek
The implementation of total war was a strategy picked by the Union officers for multiple reasons.
1) Total war will result in the destruction of Southern supplies and transportation. Sherman destroys railroad tracks, burns crops, and ruins plantations so that the Southern army/citizens have no resources to survive.
2) It will bring the Civil War to an end much quicker.
Sherman's idea of destroying the South can be viewed as an immoral action. This is due to the fact that Sherman and his troops will be destroying the land and property of individuals who may not even be part of the war or the Confederate war effort.
D. Fear of communism spreading to many Asian countries
The answer is the North Vietnamese took over the South Vietnam spreading communism Southward and this proved the domino theory (if one country come under the influence of communism, the surrounding countries would follow).