That's because the island was invaded by pretty much everyone even though it was originally a French colony. British and Spanish armies also intervened and every time that the people would win and take control of the island, the French would just send numerous new soldiers to retake it. Just during Napoleon's era, 50 000+ soldiers died from yellow fever only.
False the immigrants were taking the Indians land they hated them
The purpose of Senator Smith's Speech was to point out the Threat of McCarthyism to the citizens of the United States
All 4 contributed, but B and D are the most direct causes.