The USA decided that we would not send troops in to aid anyone, anywhere, and would allow world events to play themselves out without our interference? Since WW2 we have felt the need, as the 'leader ' of the free world to take responsiblity for influencing the outcome of certain events while disregarding others so the 'humanitarian, human rights, national security, etc' reasoning doesn't hold. If the Libyans want to overthrow their government then do it like everyone else does, by yourself without any help from us. AFghanistan? Let them shoot the shiite out of each other in that mountainous wasteland all they want, likewise in Iraq, Iran, Sudan, and all over the world.
How about we pull our troops out of Europe and let the Euro's defend themselves like they did for centuries upon centuries before we took up that yoke. we scrap NATO as a foriegn entangling alliance that possibly forces our hand to get involved in foriegn conflicts that cost billions, piss people off, and go on infinitely longer than we would ever need. The money that we wopuld save on troops and forces, materiel, logistics all over the globe could be used to defend our own borders, feed our own citizens, educate them, and prevent people from attacking us here inthe states. Leave the terrorists to kill each other in their own countries.
China and russia basicllay take this approach....why don't we? Why do we have to be the ones who have to fix everything for everyone else?