Perhaps its most famous engagement was the Battle of Omdurman, where Winston Churchill (then an officer of the 4th Hussars), rode with the unit.

It was there that the full regiment charged with lances in the classic cavalry style during the Battle of Omdurman in September 1898.

These three were Private Thomas Byrne,[4] Lieutenant Raymond de Montmorency[4] and Captain Paul Kenna.

[4] This spectacular encounter earned considerable public attention and praise for the regiment, though it was also criticized as a costly and unnecessary anachronism - since the 2,000 Dervish spearmen dispersed by the 21st Lancers could have been destroyed by rifle fire with few if any British losses.

The regiment did however see action on the North-West Frontier during 1915–16, with one trooper, Charles Hull, receiving the Victoria Cross.