105th Medium Battery , Royal Australian Artillery The 105th Medium Battery is a unit of the Royal Regiment of Australian Artillery that can trace its history back to March 1916 , when it was raised as 105th Howitzer Battery in Egypt . The battery is based at Gallipoli Barracks , Enoggera , Queensland , as a full - time regular army unit and is one of three batteries that make up the 1st Regiment , in the 7th Brigade . History . The 105th Howitzer Battery was raised in March 1916 in Egypt as a part of the 22nd Howitzer Brigade , following a decision to equip each infantry division with a Howitzer Brigade , and embarked for Marseilles , France shortly thereafter . World War I . By 11 May 1916 , the Battery joined 13th , 14th and 15th Batteries at Fleurbaix , France ( 5 km SW of Armentieres ) to form 5th Field Brigade Australian Field Artillery of 2nd Division Artillery , after a reorganisation of the artillery saw each field brigade having twelve 18 pound guns and four QF howitzers . The Howitzer Brigades then became Field Artillery Brigades also , seeing the 105th Howitzer Battery become the 105th Field Artillery ( Howitzer ) Battery . In January 1917 , batteries were increased in size from four to six guns each in order to economise on battery and brigade commanders . The Battery was disbanded following cessation of hostilities on 30 March 1919 . 1921 to 1940 . Following a restructure of the Citizen ' s Army , based on the framework of the 1st AIF , in 1921 , the 105th Field ( Howitzer ) Battery was re - raised , along with the rest of the 5th Field Regiment . The 15th Battery was an exception , not being re - raised until 1938 . The Battery was based at Gona Barracks at Kelvin Grove , Queensland at this time . During the years prior to World War II , the Battery conducted several training camps around Brisbane . The Battery embarked on their first annual training camp , held on the southern shores of the Brisbane River at Lytton in 1927 . During 1930 , two training camps were conducted . The first commenced on 4 April at Enoggera , with the second , commencing on 30 June , being conducted at Lytton . A training camp during March 1931 was conducted at Bellevue Station , near Ipswich . At this time , the Battery was still using horses for transportation of personnel and its guns . A new artillery range was opened by Assistant Minister for Defence Mr . J . Francis in September 1934 at Mound Walker ( near Rosewood ) . The Battery trekked to attend the opening of the new range , as well as conduct a joint exercise with the 111th Battery . This exercise was held annually until 1939 , when the Caloundra Range was established on a beach to the north of Brisbane . During the 1937 exercises , cars and utilities were used for transportation by Battery staff , with other Battery personnel utilising horses . The introduction of Fordson Gun Tractors in 1938 saw the Battery ' s guns being towed by the tractors , with the staff reverting to riding horses . The Battery was fully mechanised from November 1939 onwards . The Battery was again disbanded in December 1940 , with members of the 5th Field Regiment amalgamating to form the newly raised 2nd / 5th Field Regiment . This unit was later re - designated 2nd / 1st Anti Tank Regiment . 1955 to present . The Battery was re - raised on 1 July 1955 as an independent battery of 1st Field Regiment at Holsworthy Barracks . Shortly thereafter , the Battery was deployed on a tour of Malaya , lasting from September 1955 to June 1957 . The Battery remained as a unit of the 1st Field Regiment until 1960 , when the Battery moved to Sanananda Barracks , Wacol to become a founding member of 4th Field Regiment . Vietnam . The Battery was involved in two tours of Vietnam . The first from 14 September 1965 to October 1966 . It was during this tour , on 18 August 1966 , that the Battery was involved in the Battle of Long Tan . The second and last tour of Vietnam lasted from February 1969 to March 1970 . In 1976 , the Battery detached from the 4th Field Regiment and moved to its current home at Gallipoli Barracks , Enoggera to join 1st Field Regiment . Recent history . On 1 July 2005 , after 50 years of continuous service as a field battery , 105th Battery ' s 105mm L119 Hamels were replaced with 155mm M198 Howitzers , with the Battery being re - raised as 105th Medium Battery on 2 July 2005 . At the same time the Gun Troops and other sub - units of the Battery were named In 2009 , 15 members of the 105th Medium Battery deployed to train with the British Army . After training in Northern Ireland together with the British unit , they deployed to Helmand Province , Afghanistan in 2010 . This was the first time since the Vietnam War that 105th Medium Battery personnel have been deployed in their role as artillery operators in combat .