The sudden collapse of the government in Kabul is both stunning and revealing. It is the cruelest indictment and repudiation of 20 years of imperial nation building on the part of both parties. It isn’t an argument for isolationism, but for a new foreign policy resting on peaceful, democratic, and equitable relations between states, the right of countries to national independence and their chosen path of development, broad scale assistance to the countries in the Global South, and a worldwide campaign against a warming planet and nuclear weapons.