Wiesel's overall attitude towards the United States appears to be quite hopeful, in certain aspects. He discusses at length to a degree of how we, as people, we brave - and sought to fight for the greater good. It appears that he is respectful and somewhat grateful. But, there is also a hint of remorse for the lives lost in this war.
Hopefully, this helps! =)
Put he, doesn't stop trying he gives it his all, and put in a sentence for the answer, where he says something motivational.
The answer, I think, has to do with the fact that this book is what we call a classic. Its enduring value in my view lies not so much in its political theories as in the way it discloses or articulates a particular way of looking at the world. The Prince shows us what the world looks like when viewed from a strictly demoralized perspective. I think that’s what the fascination and also the scandal is all about.