10.15. It is the right of every nation State to decide who can enter and stay in its territory and under what conditions. Such right, however, should be exercised taking care to avoid racist or xenophobic actions and policies. Undocumented or irregular migrants are persons who do not fulfil the requirements established by the country of destination to enter, stay or exercise an economic activity. Given that the pressures for migration are growing in a number of developing countries, especially since their labour force continues to increase, undocumented or irregular migration is expected to rise.