premise: Helmand Province contains Lashkargah.
hypothesis: Helmand Province . Lashkar Gah serves as the provincial capital . The province has a domestic airport ( Bost Airport ) , in the city of Lashkar Gah and heavily used by NATO-led forces . The British Camp Bastion and U.S. Camp Leatherneck are a short distance southwest of Lashkar Gah . Lashkargah , historically also called Bost , is a city in southern Afghanistan and the capital of Helmand Province .