The My Lai massacre changed public perception of Vietnam drastically. Many people already thought it was an unjust war, and this added to that anti-war sentiment. When many veterans came home they were treated like trash, because everyone back home saw the terrible war crimes committed by the U.S. Many people called for an end to Vietnam after it.
The effects or results of westward expansion by white settlers were felt by Native American Indians, who were violently forced to abandon their lands to give up the ongoing expansion in the country, strongly encouraged by Thomas Jefferson. Although Jefferson did not intend to treat the Native American Indians with violence he believed it was an obligation for the US to expand its territory to the west (Manifest Destiny belief)
Answer:
The Ionian revolt led to
Leonidas marched his army to meet Xerxes I at Thermopylae
Explanation:
The army of Xerxes 1 had been near Sparta and there was little support that they had gathered for themselves in these trying times.
Thus there was need for a great fight to be put up to stop the Persian onslaught of the Spartans who had come there to fight them and had stalled their progress enough to gather the soldiers for the war. This has been the case in the first Persian invasion that had in this case largely failed and it did succeed in the later attempts.