4th Machine Gun Battalion | |
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![]() Members of the 12th Machine Gun Company
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Active | 1918–19 |
Country | Australia |
Branch | Australian Army |
Type | Infantry |
Role | Direct and indirect fire support |
Size | ~ 900 personnel |
Part of | 4th Division |
Engagements | |
Commanders | |
Notable commanders |
Harry Murray |
Insignia | |
Unit Colour Patch | ![]() |
The 4th Machine Gun Battalion was an infantry support unit of the Australian Army. Originally formed in March 1918 for service during World War I as part of the all volunteer Australian Imperial Force, it was one of five such units raised as part of the AIF during the war. The battalion consisted of four machine gun companies, which had previously existed as independent companies assigned mainly at brigade level. The battalion took part in the final stages of the war, seeing action during the Allied defensive operations during the German Spring Offensive and then the Allied Hundred Days Offensive, which finally brought an end to the war. The battalion was disbanded in mid-1919 during the demobilisation of the AIF following the conclusion of hostilities.
Originally formed in March 1918 for service during World War I as part of the all volunteer Australian Imperial Force, the 4th Machine Gun Battalion was one of five such units raised as part of the AIF during the war. Formed from Australian Machine Gun Corps personnel, the battalion was assigned to the 4th Division, and had an authorised strength of 46 officers and 890 other ranks. It consisted of four machine gun companies – the 4th, 12th, 13th and 24th – which had previously existed as independent companies mainly assigned at brigade level. While independent, these companies had been regionally affiliated with Queensland from where their recruits were drawn; however, with the establishment of the battalion identity, this affiliation was discontinued and the battalion became an "all states" unit.
The establishment of machine gun battalions within the AIF was the final step in the evolution of the organisation of direct fire support during the war. At the start of the war, Maxim machine guns had been assigned within line infantry battalions on a limited scale of two per battalion. As it was realised that there was a need for increased fire support, this was later increased to four guns per battalion, operated by a section of one officer and 32 other ranks. At the end of the Gallipoli Campaign, the AIF was reorganised and expanded in preparation for its transfer to the Western Front, and the machine gun sections within each infantry battalion had been consolidated into companies assigned at brigade level. The battalion's commanding officer on formation was Lieutenant Colonel Harry Murray, who had previously received the Victoria Cross for his actions while serving with the 13th Infantry Battalion. Murray commanded the battalion until the end of the war.