Trump weaken US
Isolated or reduce US alliances in the world, as suggested by the Republican candidate for the White House, will hardly big a country that has a central role in the balance of global power.
At that time, the United States abided the board of George Washington to avoid "entangling alliances", implementing the Monroe Doctrine, which focused on US interests in the Western Hemisphere. Without a large army (and a Navy in the 1870s was lower than in Chile), the country had a minor role in the global balance of power of the nineteenth century.
All this changed decisively with the US entry into World War I, when Woodrow Wilson broke with tradition and sent troops to fight in Europe. He also proposed a League of Nations to organize collective global security.
But after the Senate rejected the country's entry into the League in 1919, the troops stayed home and the US returned "to normal". While it was an important global actor, he turned virulently isolationist. Failure to join alliances of the Thirties set the stage for a disastrous decade marked by economic depression, genocide and another world war.
It is somewhat disturbing that the more detailed foreign policy speech Trump to date is inspired precisely in this period of isolation and feeling that "America is first." It has always been a current in domestic politics, but has remained outside the main lines since the end of World War II, for good reason: more than promote peace and prosperity inside and outside, just obstaculizándolas.
