Dassault Aviation is a French aircraft manufacturer of military, regional and business jets, a subsidiary of Dassault Group. It was founded in 1929 by Marcel Bloch as Socit des Avions Marcel Bloch or 'MB'. After World War II, Marcel Bloch changed his name to Marcel Dassault, and the name of the company was changed to Avions Marcel Dassault on 20 January 1947. In 1971, Dassault acquired Breguet, forming Avions Marcel Dassault-Breguet Aviation (AMD-BA). In 1990, the company was renamed Dassault Aviation. The Socit des Avions Marcel Bloch was founded by Marcel Bloch in 1929. In 1935 Bloch and Henry Potez entered into an agreement to buy Socit Arienne Bordelaise (SAB), subsequently renamed Socit Aronautique du Sud-Ouest. In 1936 the arms industry in France was nationalised as the Socit Nationale de Constructions Aronautiques du Sud Ouest (SNCASO). Marcel Bloch was asked to act as delegated administrator of the Minister for Air.