In 1939, equipped with Vickers Mk.VI light tanks, it deployed to France with the British Expeditionary Force (BEF), as the reconnaissance regiment of the 2nd Infantry Division under I Corps. It participated in the Battle of France, fighting in northern France and Belgium, and evacuated from Dunkirk in Operation Dynamo. The personnel of the regiment landed in England on 3 June 1940, having abandoned their vehicles.