During World War II, several dozen divisions were formed as part of the British Army, and at the end of the war they served in its ranks about 2.9 million people. In this one of the most important armies of the Second World War, in terms of numbers, the most important element was, of course, the infantry. The standard British infantry division in 1939, numbering approximately 13,900 officers and men, was relatively well saturated with mortars. This can be seen as the aftermath of the experience of the Great War, in which mortars played a significant role on the battlefield. In each division infantry battalion there was a mortar platoon consisting of 6 pieces of weapons, which very often - as early as 1939! - were transported on Universal Carriers. Mortars (three in number) were also included in the reconnaissance platoon assigned to the infantry battalion. The light mortar was also a full-time job for every British infantry squad. With the ongoing war, the mortar saturation increased and the 1944 infantry division already had (apart from the mortars on the ranks from the team up) a support battalion with three machine gun companies and a mortar company of 16 4.2 inch mortars. It can be estimated that at that time the British infantry division was equipped with approximately 360 mortars of various types. It is worth adding that the basic types of British infantry mortars in 1939-1945 were three 2 inch (50.8 mm), 3 inch (81 mm) and 4.2 inch (107 mm) mortars.
During World War II, the British Army formed a total of 43 infantry divisions. At the start of the war, the division's staff numbered approximately 13,800 officers and soldiers, while in 1944 this number increased to approximately 18,300 people. This significant change in the number of employees resulted primarily from the increase in various types of support units, and not the increase in the number of infantrymen themselves. In 1944, the British infantry division consisted of three infantry brigades, each with its own headquarters, a staff platoon, 3 infantry battalions, and engineering divisions. It is worth adding that a single infantry battalion had approx. 780 officers and soldiers and had numerous support units (e.g. a mortar platoon or a reconnaissance platoon). The division also included a de facto artillery brigade with five artillery regiments (including one anti-tank and one AA), a battalion of machine guns and mortars, as well as reconnaissance, communication and sapper units. An important element increasing the mobility of the British infantry division was its full motorization. The British infantryman's primary rifle was the Lee Enfield No.1 or No.4 rifle. As machine weapons, among others, Sten submachine guns, Bren manual machine guns and Vickers machine guns were used. The most commonly used anti-tank weapons were the 40 and 57 mm 2- and 6-pounder cannons, and later also the 76-mm 17-pounder cannons. In turn, the main armament of the field artillery was a very successful howitzer Ordnance QF 25-pounder.