Extending for 951 km through desert areas, the Algeria–Niger boundary is composed of three geodesic lines and connects the tripoint with Mali in the southwest to the tripoint with Libya in the northeast. The boundary was first established by the French during the colonial era, and an Algerian–Nigerien commission signed a border convention and demarcated the border during the 1980s. There are no disputes regarding the border. Algeria closed most of its borders in 2014 in response to the increased presence of terrorism throughout the region, which has raised tensions with surrounding countries.