The World Affairs series reflects the Rockefeller family's contributions toward national defense and international relations. The series is divided into seven sections: Foreign Policy, including the Foreign Policy Association and the Council on Foreign Relations; Institute of Pacific Relations; National Defense, which includes material on war preparedness, veteran's organizations, civil defense, the Commander Byrd expeditions and the New York City Airport Authority; Post-War Reconstruction; Peace Plans, which contains material on peace organizations, the League of Nations and the United Nations (including material on John D. Rockefeller, Jr.'s gift of the site for the United Nations headquarters); War Relief; and National War Fund.