Herstal, formerly known as Heristal, or Héristal, is a city and municipality of Wallonia located in the province of Liège, Belgium. It lies along the Meuse river. Herstal is included in the "Greater Liège" agglomeration, which counts about 600,000 inhabitants. The municipality consists of the following districts: Herstal, Liers, Milmort, and Vottem. A large armaments factory, the Fabrique Nationale or FN, and the biggest industrial zone of Wallonia provide employment locally.