Why should we support our troops?

Unfortunately, there are bad people everywhere in the world, including America. I am European, and I do prefer watching the EU news instead of CNN, because a lot of what you hear on the American news is a lie. America pays billions of dollars to support Israel to fight its nasty wars, and we don't have proper health care in this country. You shouldn't feel obligated to support American troops, just because you live in America, or because you are American. There is injustice everywhere, and you shouldn't be okay with that.