Course à la mer
In the "Race to the Sea" from September 14, the 5th Dragoons crossed the Somme at Péronne, fighting in the First Battle of Arras, Picardy, in Lens on October 4, an attack by foot in Riez-Bailleul where it pushed the enemy back several kilometres. On November 11, it arrived near Ypres, where it dug in the trenches.