The National Liberation Front commonly known by its French acronym FLN, is a nationalist political party in Algeria. It was the principal nationalist movement during the Algerian War and the sole legal and ruling political party of the Algerian state until other parties were legalised in 1989.

The Algerian War was a major armed conflict between France and the Algerian National Liberation Front (FLN) from 1954 to 1962, which led to Algeria winning its independence from France. An important decolonization war, it was a complex conflict characterized by guerrilla warfare and war crimes. The conflict also became a civil war between the different communities and within the communities. The war took place mainly on the territory of Algeria, with repercussions in metropolitan France.