It sounds to me like you've already made up your mind that it's the fault of the US. Which makes you look bad. But if you are still reading this, then go look up the Duvalier family, who ruled Haiti with an iron fist for more than 60 years, and robbed 10s of billions of dollars from Haiti's economy.
'Papa Doc' and 'Baby Doc' simply did not care how many lives they ruined. In a way, Haiti was much like North Korea is now.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.