58th HAG on 25 November during the fighting for Bourlon Wood and then the German counter-attacks that wiped out the gains of Cambrai. Battles of 1918 44th Siege Battery remained with Third Army during the winter of 1917–18, under 87th HAG from 15 December to 26 February 1918. In early 1918 the BEF changed its heavy artillery organisation. The HAGs became permanent RGA brigades, but the heaviest guns (including 44th SB's railway howitzers) remained unbrigaded under the direct command of Army HQs. The battery operated under Third, First, Fifth and Fourth Armies during the German spring offensive and Allied Hundred Days Offensive of 1918. As the fighting became more fluid the heaviest artillery became less useful, the railway guns in particular being dependent on the rate at which the RE could repair the destroyed lines in the battle zone. When hostilities ended in November, 44th SB was operating under Fifth Army. Postwar Unusually for a New Army unit, 44th Siege Battery was not disbanded after the Armistice with Germany but continued in the postwar Regular Army. On 24 July 1919 it absorbed the Home Service details of No 84 Company RGA at Plymouth (the rest of the company having been converted into 130th Siege Battery in 1916 and disbanded in 1919). It was then converted into a medium artillery battery in XI Brigade, RGA. On 13 January 1920 it absorbed the former 60th Siege Battery and later that year the battery and brigade were redesignated as 16th Medium Battery in 4th Medium Brigade. From 16 August 1921 16th Med Bty was considered to be the successor to 84 Company, RGA, originally formed in 1757, and on 13 November 1934 it was awarded the Honour Title 'Gibraltar 1779–83' in recognition of that company's service during the Great Siege of Gibraltar. On 1 June 1924 the RGA was subsumed into the Royal Artillery (RA), and in May 1938 the brigade was redesignated 4th Medium Regiment, RA. Just before the outbreak of war in 1939 the RA's medium regiments were each reorganised into two large batteries, and 16th Bty served throughout World War II as part of the linked 14/16 Medium Bty. 4th Medium Rgt served in the Battle of France, Tunisian Campaign and Italian Campaign. 16 Battery was unlinked in the 1947 reorganisation of the RA, and resuscitated with new personnel to become 22 (Gibraltar 1779–83) Observation Battery ('Locating Battery' from 15