Invasion

All over the world countries are invading each other, for many many reasons. Look at the situation with Libya and the U.S. In my opinion the only reason one country should invade another country is if an event in one country is going to negatively and extensively effect everyone. And even then this is not a decision to be made lightly. I believe that only a organization, like the U.N, with a vested interest in the welfare of every country and/or territories, should be the only power that can make such an enormous decision. When countries were allowed to invade each other willy-nilly we get things like World War I, the genocides in Africa, and the war in the Middle east. Very rarely does any good every come from an invasion and can have tremendous and horrible consequences if not thought through and considered carefully, not to mention they have to be done for the right reasons.