What were the consequences of ww2

World War II was one of the transformative events of the 20th century, causing the death of 3 percent of the world's population. Deaths in Europe totaled 39 million people — half of them civilians. Six years of ground battles and bombing resulted in widespread destruction of homes and physical capital

Explanation:

four sitting presidents have been assassinated while in office but the first was abraham lincoln,

d.)   when the us left nato after the end of the cold war and they had to evolve to focus on more humanitarian measures with the smaller budget