Human migration
Human migration is the movement of people from one place to another with intentions of settling, permanently or temporarily, at a new location (geographic region). The movement often occurs over long distances and from one country to another (external migration), but internal migration (within a single country) is also possible; indeed, this is the dominant form of human migration globally.
Migration is often associated with better human capital at both individual and household level, and with better access to migration networks, facilitating a possible second move in their life.
— Wikipedia