The Caribbean region is characterized by a very fluid internal movement of people, and by significant transit movements of non-Caribbean migrants.  Lack of economic opportunities in many areas, coupled with historical patterns of movement, and in some cases human rights abuses and disasters, are the main drivers influencing migration of people from the Caribbean both within and outside the region.  Irregular migration, migrant smuggling, human trafficking, brain-drain, environmental migration and mass outflows of migrants are all part of the current migration dynamics in the Caribbean.