Somme (river) invasion fleet of William the Conqueror assembled in the Bay of the Somme, at Saint-Valery-sur-Somme. The river also featured in the 1346 withdrawal of Edward III of England's army, which forded the river at the Battle of Blanchetaque during the campaign, which culminated in the Battle of Crécy. Crossing the river also featured prominently in the campaign which led to the Battle of Agincourt in 1415. In 1636, a Spanish army led by Thomas Francis, prince of Carignan, crossed the Somme defeating a French army during the Thirty Years War threatening Paris. Most famously, the Battle of the Somme, during
Battle of the Samichon River in the river as it turned towards Seoul. Loss of The Hook would force the UN troops to withdraw nearly to the next tenable defensive line on the high ground south of the Imjin River. As a result, the Chinese had made repeated attacks against it, with the 1st Battalion, Princess Patricia's Canadian Light Infantry repulsing the first Chinese attempt in late-March 1952. The 1st Battalion, The Black Watch did so again in November 1952, while the 1st Battalion, Duke of Wellington's Regiment had fought the heaviest battle there in May 1953 during the Third Battle of the Hook. In