Michel de Montaigne Quotes
The same reason that makes us chide and brawl and fall out with any of our neighbors, causeth a war to follow between Princes.
Montaigne, Michel de. The Essayes of Michael Lord of Montaigne. Translated by John Florio, vol. 2, Henry Frowde, 1904, p. 195.
While this was a common attitude for years before, the horrors of World War II produced a general revulsion to war and an awareness that war between two nations spills over to other states in the region and in an era of globalization, effects countries in other parts of the world. So there has been a tendency to use diplomacy endlessly, even after "things have gone too far". Historically, when things reached that point, the parties did fight it out, and when one was weakened sufficiently, negotiations and diplomacy could then be fruitful.
At that time there were extensive meetings and discussions for the creation of what was to be the United Nations. The negative view of the United Nations or other international security organization is now and always has been held by a vocal minority in the United States.
Michel Eyquem de Montaigne, also known as Lord of Montaigne, was one of the most significant philosophers of the French Renaissance, known for popularizing the essay as a literary genre. His work is noted for its merging of casual anecdotes and autobiography with intellectual insight. His massive volume Essais contains some of the most influential essays ever written.