The military draft brought the war to the American home front. During the Vietnam War era, between 1964 and 1973, the U.S. military drafted 2.2 million American men out of an eligible pool of 27 million. Although only 25 percent of the military force in the combat zones were draftees, the system of conscription caused many young American men to volunteer for the armed forces in order to have more of a choice of which division in the military they would serve. While many soldiers did support the war, at least initially, to others the draft seemed like a death sentence: being sent to a war and fight for a cause that they did not believe in. Some sought refuge in college or parental deferments; others intentionally failed aptitude tests or otherwise evaded; thousands fled to Canada; the politically connected sought refuge in the National Guard; and a growing number engaged in direct resistance. Antiwar activists viewed the draft as immoral and the only means for the government to continue the war with fresh soldiers. Ironically, as the draft continued to fuel the war effort, it also intensified the antiwar cause. Although the Selective Service’s deferment system meant that men of lower socioeconomic standing were most likely to be sent to the front lines, no one was completely safe from the draft. Almost every American was either eligible to go to war or knew someone who was.
I think its the executive branch!
Your question has been up a couple weeks without an answer, perhaps due to its complexity. I'll answer at least part of it for you. For paragraph 4, I believe ultimately the verdict of history is that the Treaty of Versailles was a failure. Let me explain that, which also explains how it led to World War II.
The Treaty of Versailles, which came out of the Paris Peace Conference in 1919, was very punitive towards Germany. Germany was forced to admit responsibility for causing the Great War (World War I). We now call that "the war guilt" clause of the treaty. Germany also was forced to pay large reparation payments to the Allies (who opposed Germany in the war). The German economy and national pride were deeply wounded. The Great Depression was worse in Germany than in America. The bad situation in Germany made it possible for a radical leader like Hitler, making all sorts of bold promises, to win over enough people to rise to power. Hitler promised a return to national greatness and fiercely rebuilt Germany as a military machine. The rise of Hitler and the Nazis brought about World War II in Europe.