On a geopolitical level it makes sense.

http://www.businessinsider.com/stratfor-george-friedman-pred...

George Friedman: "Well what are our geopolitical objectives? First, that North America be peaceful, prosperous, dominated by the United States. Second, that no nation be able to approach the United States militarily ... Those are the goals. It's very simple. We achieve that by making certain that all conflict takes place in the Eastern Hemisphere so we don't have conflict here."

It's survival of the fittest countries by stirring up stuff in other countries.