Hitler's power was not checked when the US entered the war. The war with the US was between them and Japan. The USSR did join sides with the allies when Germany broke an treaty. However, the US did win the war between Japan.
Before it was a French colony, Haiti was called Saint-Domingue.
The Island itself was, and continues to be, called Hispaniola.
Haiti was the original name of the Island given it by the indigenous people, the Taino. This name was restored when Haiti achieved independence.
D+b i think... I am not sure, but I am pretty sure that that is what it is, because none of the other answers make sense.