Germany and Italy are among the countries that are looking for ways to handle rises in undocumented migration and, in many cases, are making it harder for people to remain in their countries.
Though not a rich country, Colombia is unusually well equipped to handle mass migration because of its own history with political strife and displacement.
Officially, the number of migrants globally reached 258 million in 2017, increasing by 49% since 2000. But the lack of a clear definition of who is or isn’t a migrant complicates the issue.