As the world has grown smaller through advancements in transportation and communication, the number of international organizations has grown rapidly. Some have global membership. Others have regional or limited functional memberships. These organizations deal with an incredibly wide range of issues and range from national security and military alliances through major international economic organizations such as the International Monetary Fund, World Bank, GATT (General Agreement on Tariffs and Trade), and the European Community to the International Postal Union and a variety of organizations dealing with health, environmental, and other humanitarian concerns.