On the outbreak of the Second World War, Beauman returned to active service and was appointed Commanding Officer Northern Area with the
British Expeditionary Force (BEF) in France, with the rank of (acting) brigadier. With the start of the German offensive in May 1940, Beauman was ordered by Major General
Philip de Fonblanque, the General Officer Commanding Lines of Communication Troops, to strengthen his local defences. He formed a small mobile force, known as "Beauforce", consisting of four
Territorial infantry battalions that had been intended to defend communications and undertake
pioneer work. On 27 May, Beauman was promoted to temporary
major general and ordered to form a new division from "Beauforce" and a similar formation called "Vicforce", together with a third unit called "Digforce", which was composed of infantry reservists that were serving with the
Auxiliary Military Pioneer Corps. The new formation was called the "
Beauman Division"; this was the only example of a British division being named after its commander since the
Peninsular War. Although supported only by a few field guns that had been under repair in base depots, some of them lacking sights, the division was ordered to defend a 55-mile (89 km) line defined by the small rivers
Andelle and
Béthune in
Upper Normandy. On 8 June, the
5th and
7th Panzer Divisions attacked towards Rouen. Despite desperate fighting, the line was penetrated first at
Forges-les-Eaux and then in many other places, so that by that night, Beauman Division had been forced to withdraw across the
Seine. The division was eventually evacuated from
Cherbourg on 17 June, during
Operation Aerial. On arrival in England, the division was dispersed and Beauman relinquished the temporary rank of major general. He was mentioned in despatches for his services. In 1941, Beauman was appointed Commanding Officer of
Catterick Garrison and in 1943 became the District Officer Commanding
North Riding District, before finally resuming his retirement in October 1944. ==Family life==