In 1950, the refugee problem was confined to the 6 million refugees of post-war Europe. However, the principles & policy direction underlying the U.N. High Commissioner for Refugees¿ mandate has remained valid, during which refugee problems have shifted to developing countries. The exodus of refugees is often precipitated by economic & environmental pressures in addition to political factors. Large scale population displacements in the poorest countries of the world may become one of the major security risks of the future. Here is an overview of refugee movements & the impacts in least developed countries. Includes recommended action for solutions to the refugee problem in least developed countries during the 1990s. Charts & graphs.