The Saint-Nazaire Pocket (German: Festung St. Nazaire, French: Poche de Saint-Nazaire) existed from August 1944 until 11 May 1945 and was formed by the withdrawal of German troops from Loire-Inférieure (now Loire-Atlantique) during the liberation of the department by the allied forces. It was centred around the port and the submarine base of Saint-Nazaire and extended to the east as far as Saint-Omer-de-Blain and from La Roche-Bernard in the north to Pornic in the south.