Every year, millions of travellers from non-EU countries cross the external borders of the Schengen Area, the largest free-travel area in the world for work or travel. To increase internal security and contribute to the modernisation of external border management, the EU has agreed on the establishment of an Entry-Exit System (EES) which will register the entry and exit at the EU external borders of non-EU nationals who are not residing in the Schengen Area.