The idea that interdependence leads to less wars is very old one. I was reading The Guns of August which tells about beginning of first World War, it refers to book released in 1910 called "the Great Illusion" [1]. I have not read it, but the book became best seller just before first World War, I'll quote from Wikipedia here:
> In The Great Illusion, Angell's primary thesis was, in the words of historian James Joll, that "the economic cost of war was so great that no one could possibly hope to gain by starting a war the consequences of which would be so disastrous." For that reason, a general European war was very unlikely to start, and if it did, it would not last long...
> According to Angell, the economic interdependence between industrial countries would be "the real guarantor of the good behavior of one state to another"...
Economics matter, but if the leadership isn't made of business caring people, or is isolated like it now looks like, then interdependence isn't happening regardless of business ties between companies.