Americans never see the intrusion of our troops over-seas. If we had the opportunity to observe, then we may gain a new perspective.
On the other hand, the best way to observe any system is by being detached from it. For instance, when you are reading a book, you peer through the minds of the characters. You gain a clearer understanding of every character because you operate outside of the novel. But you must ask yourself, is it genuinely clearer, or is it only biased?