Answer:
The First Amendment protects their right to assemble and express views through protest.
Americans started to hate the war (woo go peace core) and eventually we left Vietnam and Johnson didn't try his luck for getting his second term lol
They entered on the side of the Allies. (Britain, Russia ECT) to oppose the Axis Powers. (Japan, Germany, Italy)
Answer:
changes in government, before 1770 most countries were either monarchies, absolute monarchies, republics, city states, or empires afterwards came political theory and such on a much greater scale