The United States had entered the conflict in Vietnam as the world’s superpower following its decisive victory over the Axis powers in World War II, but left Vietnam with a humiliating defeat, shockingly high casualties, American public sharply divided and its leaders uncertain of what lay ahead in foreign policy. <em><u>The nation’s longest and most debilitating war – the only war the U.S. ever lost, had far-reaching consequences and impact on most aspects of American life from the economy, culture to domestic politics and foreign policy – some of which continue to do so today. </u></em>
4. Native Americans were forced out by competition for resources and hunger.
Explanation:
Andrew Jackson made an act "Removal Act" forcing Native Americans to move to another land, causing Trail Of Tears. Many had died by starvation and no warmth through the way. Americans wanted resources like gold, found in the Native American.