Montreuil-sur-Mer

Montreuil-sur-Mer (; or , literally Montreuil on Sea; also ) is a sub-prefecture in the Pas-de-Calais department, northern France. It was known officially as Montreuil until 31 December 2022. It is located on the Canche river, not far from Étaples. The sea, however, is now some distance away. Montreuil-sur-Mer station has rail connections to Arras and Étaples. Sights Montreuil-sur-Mer is surrounded by notable brickwork ramparts, constructed after the destruction of the town by troops of Habsburg emperor Charles V in June 1537. These fortifications pre-date the extensive fortification of towns in northern France by Sébastien Le Prestre de Vauban in the 17th century. History Montreuil-sur-Mer was the headquarters of the British Army in France during the First World War from March 1916 until it closed in April 1919. The military academy there provided excellent facilities for GHQ.