> Historically countries who trade less tend to be hostile toward each others, while countries who trade in bigger volumes are friendly I can think of one big

> Historically countries who trade less tend to be hostile toward each others, while countries who trade in bigger volumes are friendly I can think of one big counterexample off the top of my head: trade between France and Germany in the years leading up to 1914. Strong economic ties didn't prevent Europe from going completely off the rails. Which historical trading partners did you have in mind?