What are the four reasons that we did nothing to stop hitler

I believe 2 reasons are:

1.) The U.S didn't know what Hitler was doing until after the war

2.) The U.S wasn't sure how destructive he would be

hi!

your answer is d

mark me brainliest

~courtney

i believe that the correct answer is a canadian hero.

explanation: he is celebrated as a national hero in canada for successfully thwarting a united states takeover of canada during the war of 1812.