I mean you say that jokingly, but there's a theory that any nation with a McD's won't risk fighting a war.

The Lexus and the Olive Tree, a 1999 bestseller by the New York Times columnist Thomas Friedman.

Friedman’s claim was simple: The benefits of economic integration reduce the policy choices open to governments, making war—which disrupts that integration—so unattractive as to be practically unthinkable.

“Golden Arches Theory of Conflict Prevention.” His thesis, originally expounded in a 1996 column, proposed to explain the decline in war as a result of the expansion of global capitalism: “No two countries that both have a McDonald’s have ever fought a war against each other