The United States decided to go to war against Iraq in 2003 because the United States believed that Iraq had weapons of mass destruction. WMD or weapons of mass destruction can kill millions of people.
Assuming that this is referring to the same list of options that was posted before with this question, "a military coup" did not trigger Haiti's fight for independence since this never occurred.
Answer:
A region is a unit on the earth's surface that has unifying characteristics such as climate or industry. These characteristics may be human, physical, or cultural. Not only do geographers study characteristics, but they also study how regions around the world may change over time.
