To prevent dictators with radical views from rising to power. To establish a global community with the promise of global prosperity. I will add more to this, I need time to think about it. Edit: okay, having some time to think about it and having done a little research on NATO, I think I have a better idea of what I'm talking about. Ideally, the wealthy countries should help poor countries by first establishing a government for the people, by the people so they can elect their first leader; then support trade that fosters economic growth. Then send senior officers to assist in training a military to defend itself from foreign, as well as domestic threats. Assist in stabilizing the country (with a NATO Developing Countries Treaty or something like that) and create public school systems to educate its citizens.