The Surrey Yeomanry was a unit of the British Army formed as volunteer cavalry in 1794. It saw action in the Second Boer War, World War I and World War II, during which one of its regiments distinguished itself defending the 'Canal Line' during the retreat to Dunkirk, and served at Alamein, in Sicily and Italy. Its other regiment served in East Africa, the Siege of Tobruk, and in Iraq and Persia. The regiment's lineage is maintained today by 2 (Surrey Yeomanry) Field Troop, 579 Field Squadron (EOD), part of 101 (London) Engineer Regiment (Explosive Ordnance Disposal) (Volunteers).