A unique and very important subsector of the civil society in the United States is U.S.-based international nonprofits. Their formation and development is closely connected with the rise of the United States as a superpower, progress of globalization, revolutions in science and technology as well as world politics in the post Cold War era. The total number of such nonprofits is less than one percent of IRS exempt organizations. They have, however, magnificent technological and institutional capacities, and considerable influence over international affairs. Now U.S.based international nonprofits have built up ideal channels for American public diplomacy. As a key component of American soft power, they play one of the fundamental roles to serve American diplomacy and to carry out American national security strategy in the 21st century.
The Institute of American Studies (IAS) under the Chinese Academy of Social Sciences is a non-profit academic institution engaged in the comprehensive studies of the United States of America.