The 5th Battalion, South Lancashire Regiment, was a unit of the British Army's Reserve Forces first established in St Helens, Lancashire, in 1860. It served as infantry in some of the bitterest fighting on the Western Front in World War I and as a searchlight regiment in Anti-Aircraft Command during World War II.

Origin The unit had its origins in two of the many Rifle Volunteer Corps (RVCs) formed in the wake of an invasion scare in 1859.Beckett. The 47th Lancashire RVC formed at St Helens on 29 February 1860, consisting of five companies. It was under the command of Major David Gamble, a local chemical manufacturer, and members of the Pilkington glassmaking family of St Helens and Brunner chemical manufacturing family of Widnes were prominent among the unit's officers.Frederick, pp. 188–9.Westlake, pp. 146–7.Beckett, Appendix VII.Lancashire Record Office, Handlist 72Army Lists. Its drill hall, built in 1861 and known as Mill Street Barracks, was at the corner of Volunteer street and Mill Street, St Helens.St Helens, Mill Street barracks at Great War Centenary Drill Halls.'TA meeting place restored to former glory', Liverpool Echo, 1 July 2013. The 48th Lancashire RVC was a single company unit formed at Prescot under Captain Walter Wren Driffield on 15 March 1860. The two units were combined on 19 October 1880 under the Childers Reforms as the 21st Lancashire RVC (the original 21st (Wigan) Lancashire RVC having merged into another unit). The new unit had an establishment of eight companies and a uniform of Rifle green with scarlet facings.

On 1 July 1881 it became a Volunteer Battalion (VB) of the Prince of Wales's Volunteers (South Lancashire Regiment) and on 1 July 1886 it was designated the 2nd VB. Under the mobilisation scheme introduced by the Stanhope Memorandum of 1888, it formed part of the Mersey Volunteer Infantry Brigade, later the Cheshire and Lancashire Brigade, and then the Lancashire Brigade from 1900.

South Africa In January 1900, the 2nd VB, commanded by Col W.W. Pilkington, offered to send volunteers to reinforce the 1st Battalion South Lancashires fighting in the 2nd Boer War. Between them the two Volunteer battalions raised a service company which, after a short period training at Orford Barracks, Warrington, was sent out and joined the Regulars at Ladysmith on 29 March 1900. It took part in all the 1st Bn's operations up to the occupation of Vryheid, and then went back to Ladysmith for garrison duties until it returned to England in May 1901. It was followed by three further contingents to serve with the 1st Bn, as well as numerous individuals from the Volunteer battalion serving with the Imperial Yeomanry, the Mounted Infantry, the South African Constabulary and various non-combatant corps.Mullaly, pp. 146–7.

The battalion was subsequently awarded its first Battle honour: 'South Africa 1900–01'.

Territorial Force On the formation of the Territorial Force (TF) under the Haldane Reforms in 1908, the 2nd VB became the 5th Battalion of the South Lancashires, forming part of the South Lancashire Brigade in the West Lancashire Division of the TF.James, p. 81.Becke, Pt 2a, pp. 133–9.

World War I

Mobilisation The West Lancashire Division had just begun its annual training when war broke out on 4 August 1914. The units immediately returned to their drill halls to mobilise for war, and the bulk of them volunteered for overseas service. The 5th Bn went to its war station at Edinburgh, moving in October to Tunbridge Wells.

On 31 August 1914, the formation of Reserve or 2nd-Line units for each existing TF unit was authorised. Initially these were formed from men who had not volunteered for overseas service, and the recruits who were flooding in. These were designated by a '2/' prefix to distinguish them from their 1st-Line parent unit (prefixed '1/'). Later they were mobilised for overseas service in their own right and 3rd-Line battalions were created to train reserves.Becke, Pt 2b, pp. 1–7.

1/5th Battalion During the winter of 1914-15 the battalions of the West Lancashire Division began to be sent to reinforce the Regulars of the British Expeditionary Force (BEF) fighting in France. The 1/5th Battalion South Lancashires, under the command of Lieutenant-Colonel L.E. Pilkington, disembarked at Le Havre on 13 February 1915 and joined 12th Brigade in 4th Division for instruction in Trench warfare.Becke, Pt 1, pp. 57–63.Mullaly, p. 177.

The sector occupied by 12th Bde was one of the worst on the BEF's front, with the water table so high that trenches could not be used and defences consisted of breastworks. The battalion was also employed in mining, and won four Distinguished Conduct Medals (DCMs) for gallantry during these operations.Mullaly, p. 180.

2nd Ypres The 4th Division was engaged in the 2nd Battle of Ypres from 28 April to 25 May 1915, including the Battles of St Julien, Frezenberg Ridge and Bellewaarde Ridge. The 1/5th Bn marched up on 28 April as 12th Bde took up positions at Turco Farm alongside French troops. At midday on 2 May the Germans began a heavy bombardment of 4th Division's front, and then at 16.00 released a heavy concentration of chlorine gas and attacked. 1/5th Battalion was in reserve, and sent up 'A' Company, commanded by Captain Guy Pilkington, to help. Charging through the gas cloud, 'A' Company reached the front line trenches in time to help repel the attack. The British line south of St Julien had given way, so the following day the 1/5th Bn, less 'A' Company, took up new positions around Shell Trap Farm while the Germans consolidated. About 17.00 on 5 May the battalion's positions received a violent bombardment, which caused many casualties and collapsed most of the parapets. Company Sergeant-Major F. Smith won a DCM for rescuing seven men who had been buried. This fire continued until midnight, during which the battalion repulsed four small attacks. During the night the battalion was reinforced by 'A' Company, and was relieved the following night.Mullaly, pp. 180–1.

Over the next few days the battalion frequently moved up to reinforce or support the line as German attacks continued, until it was relieved on 16 May. The 1/5h Bn was back in the line on 22 May, and two days later the Germans released the heaviest concentration of gas yet encountered, followed by an infantry attack. The situation quickly became critical, and the battalion sent up 'B' and 'C' Companies under Major W.N. Pilkington to hold the line near Shell Trap Farm to connect with the French while the rest moved into 4th Division's support line. The two companies suffered heavy casualties under shell fire, and at one time there as a gap of 1500 yards between them and the French flank. Contact with the French was restored with great difficulty, and during the night 4th Division fell back to the support line, and the South Lancashires had to improve the positions while keeping the enemy at bay with snipers and bombing parties. Fighting died down on 25 May, ending the battle.Mullaly, pp. 182–3. Lieutenant-Colonel L.E. Pilkington was later awarded a CMG, and Major W.N. Pilkington a DSO for their work in the Ypres Salient.Mullaly, p. 190.

In August 1915 the 4th Division left the Salient and took over a new sector of the line north of Albert, Somme. On 4 November 1915 the experienced 12th Brigade was transferred to help train the newly arrived 36th (Ulster) Division.Becke, Pt 3b, pp. 61–9.Mullaly, p. 186.

At the beginning of 1916 the West Lancashire Division, redesignated 55th (West Lancashire) Division, was reconstituted in France, and 1/5th South Lancashires rejoined it on 6 January, taking its place in 166th (South Lancashire) Brigade and holding a quiet sector south of Arras.

Somme The 55th Division entered the Somme sector in August 1916, occupying part of the line around Fricourt,Mullaly, p. 213. and later took part in the following battles of the Somme offensive: Guillemont, Ginchy, Flers-Courcelette and Morval.

The 166th Bde was in reserve for the start of 55th Division's attack on Guillemont, but continued the attack on 9 August, with 1/5th Bn in support. 166th Bde's attackers became entangled with the troops who had made the previous attack, and 1/5th Bn's supporting companies became hopelessly mixed up with them under shellfire. Later that day it was pushed forward to consolidate a new position in front of Trônes Wood. On 13 August, 'D' company took part in a minor operation against an isolated trench, but the adjacent French attack failed, and the operation was unsuccessful. When the battalion was relieved on 15 August, it had suffered over 80 casualties for no advantage.Mullaly, pp. 213–4.

55th Division returned to the line in front of Delville Wood on 4 September, where 1/5th Bn was kept busy digging communication trenches and strongpoints. On 8 September an attack by a neighbouring brigade elicited a violent counter-attack that almost broke through the battalion's barricade near Delville Wood. It spent the night building new strongpoints in front of its line, and when it withdrew it had suffered another 160 casualties. When it went back into the line it occupied trenches that had already been taken in the Battle of Flers-Courcelette, nor was 1/5th Bn involved in 55th Division's actions in the Battle of Morval. The division let the Somme sector at the end of September.Mullaly, pp. 217–8.

3rd Ypres

The 55th Division took part in the Battle of Pilckem Ridge, the opening phase of the 3rd Battle of Ypres, on 31 July 1917. The 1/5th Bn had been withdrawn from the line for training during June, and moved up to its assembly position on 30 July. Its role in the attack was to support the attack by the leading battalions, passing through to take the second objective on the 'Black Line'. The leading wave went over the top at 03.50, and the 1/5th advanced at 05.05. As it advanced towards the Black Line the firing became heavier and the platoons advanced by short rushes until they got to within 200 yards of the objective. Here they were checked until two tanks came up and allowed the battalion to resume its advance and clear the enemy dug-outs. Despite harassing fire and bombardment the battalion consolidated its position in Capricorn Trench, which was the most advanced reached by the British on that depressing day. Although 55th Division's casualties were unusually high, 1/5th Bn suffered moderately, with 28 killed, 138 wounded and 12 missing. After holding Capricorn Trench through torrents of rain and consequent mud, it was taken out of the line on 4 August.Mullaly, pp. 257–8.Wolff, p. 159.

The battalion returned to the same sector in September and was in reserve when 55th Division attacked Gravenstafel Ridge in the Battle of the Menin Road Ridge in 20 September. About mid-day, the 1/5th was ordered to send up 'B' and 'C' Companies to continue the attack on Hill 37, which was holding out. The two companies advanced by rushes and took the position. Not knowing of this success, the rest of the battalion was ordered up to take Hill 37 and Gallipoli Copse. Finding Hill 37 already in their hands, the rest of the 1/5th carried on the capture Gallipoli Copse and consolidate before the expected German counter-attack. Assisted by heavy artillery fire, this nearly succeeded, and the situation for 1/5th Bn became precarious, with both flanks in the air and ammunition running out, but it held its positions until nightfall, when the rest of 55th Division was able to link up from either flank. There was a further counter-attack the following day, which the battalion repulsed with heavy casualties. Its own casualties when relieved on 22 September had been comparatively light given the severity of the fighting: 27 killed and 143 wounded.Mullaly, pp. 262–3.

Cambrai