Reviewing the year's activities, the annual report of the World Meteorological Organization (WMO) for 1957 stated that WMO technical assistance to underdeveloped countries had reached a new high in number of national weather services aided and number of experts sent to the countries. WMO provided experts or granted fellowships to 26 countries or territories during the year, under the UN Expanded Program of Technical Assistance, and sent instruments and equipment used in weather reporting and forecasting in connection with technical assistance missions to Afghanistan, Brazil, Chile, Ecuador, Iceland, Nicaragua, Sudan, and Uruguay. During this period 24 fellowships were awarded for advanced training of personnel in weather forecasting, tropical meteorology, hurricane forecasting, maritime meteorology, and aerology.