I was referring to the Friedman thing. While he was stupid enough to frame his rule as an absolute (thus it has been violated), the reality is that McDonalds is in 119 countries and the number of wars between those countries over the past 50 years can be counted using your fingers.

That was just an example, though. My main point is that the peoples and nations of the world, given the opportunity, overwhelmingly prefer to pursue relationships of peaceful mutual benefit, rather than military threat. The purpose of a military is merely to preserve or restore that opportunity.

The notion that trade has a negative correlation with war is a well-accepted concept in international relations, and one of the reasons national governments exert themselves to grow international economic relationships.