Are we nation building? Not that I can see, but perhaps your definition is different than mine. I do agree that we should be more judicious with our foreign aid. We are trying, in a lot of cases, to purchase loyalty, and history has proven time and again that we cannot do that. But of course, the moment you cut off aid, you ABSOLUTELY need to increase military presence, and that is where Paul is off the deep end. One cannot eliminate both foreign aid and military might at the same time unless one really wishes to learn a foreign culture and language instead of counting on remaining American for the near and far future.
Paul does not want to eliminate the military at all. He wants to bring them home, to defend our country (instead of Pakistan...). He has said, time after time, that he does not want to cut defense spending one penny.
I, however, would be hugely in favor of cutting military and defense spending. Why do we feel it is necessary to spend ten times the next closest country in our defense? N

NE is going to attack the U.S. directly. We would nuke them out of existence. The only way that we are going to be attacked is through terrorism. The fact is, as history shows, time and again, our involvement in the middle east makes terrorism worse. Entangling ourselves in other countries affairs, not only makes us poor, and hurts our citizens, it just breeds more terrorists. You cannot fight hate with hate.
Imagine for a moment that we had a weapon, that would target every single terrorist in the world, and blow them up right now. If we used it, you know what would happen? In fifteen years, we would have ten times the terrorists we have now. Why? Because their sons, daughters, aunts, and uncles, brothers and sisters, would all be saying "Those evil people from the U.S. killed my daddy, mommy, brother, son," etc.
Securing our borders (to keep the bad guys from coming in), and redefining the U.S. image globally, along with a strong
national defense, and a well trained and streamlined investigative force right here, are the ONLY things that are going to keep us safe. Attacking more people, just makes more enemies....