The movement of people from one country to settle in another country is called immigration.
When people leave their country to live in another country, it is called emigration.
The region of a country bordering on another or a line, barrier, etc., marking such a border is called a frontier. A frontier is also the edge of the settled area of a country.
When a company hires people in Another Country to do work for them, it is called outsourcing.
When a company hires people in Another Country to do work for them, it is called outsourcing.
When a company hires people in Another Country to do work for them, it is called outsourcing.
When a company hires people in Another Country to do work for them, it is called outsourcing.
When a company hires people in Another Country to do work for them, it is called outsourcing.
The movement of people from one country to another region is called migration.
outsourcing
Migrating
People who move from one country to another are called immigrants or expatriates, depending on their legal status and purpose of moving.