What are some of the problems faced by refugees? In what ways could the concept of global citizenship benefit from them?

Some of the problems faced by Refugees are : 

In spite of restrictions, even the building of walls or fences, considerable migration of peoples still takes place in the world. People may be displaced by wars, or persecution, famine, or other reasons. If no state is willing to accept them and they cannot return home, they become stateless peoples or refugees. They may be forced to live in camps, or as illegal migrants. Often they cannot legally work, or educate their children, or acquire property. The problem is so great that the U.N. has appointed a High Commissioner for Refugees to try and help them.

One of the attractions of the notion of global citizenship is that it might make it easier to deal with problems which extend across national boundaries and which therefore, need cooperative action by the people and governments of several states. For example, it might make it easier to find an acceptable solution to the issue of migrants and stateless peoples, or at least to ensure them basic rights and protection regardless of the country in which they may be living.