On 20 August 1914, the regiment distinguished itself during the Siege of Antwerp. On 16 October 1914 the Battle of the Yser began, leading to four years of battles in the trenches on the Yser front. On 6 March 1918, the 2nd ChCh was able to withstand a massive attack by the enemy at Reigersvliet. The regiment was part of a counter-attack together with other units of the Cavalry Division. After the Allied occupation of the Rhineland, the 2nd ChCh moved to Namur.