It has long been understood that trade, and trade deals, are intimately entwined with considerations of national security. Consider, for example, the Schuman Declaration of 9 May 1950, which laid the groundwork for the establishment of the European Coal and Steel Community (ECSC), the predecessor to the European Union (EU):

The coming together of the nations of Europe requires the elimination of the age-old opposition of France and Germany. Any action taken must in the first place concern these two countries.