The 50th Battalion was an infantry battalion of the Australian Army. It was originally raised in Egypt in early 1916 for service during World War I, drawing a cadre of experienced personnel from the 10th Battalion. After the unit's formation, it was transferred to Europe where it took part in the fighting in the trenches of the Western Front in France and Belgium. Following the end of hostilities, the battalion was amalgamated with the 51st Battalion in early 1919 as demobilisation reduced the numbers in both battalions. In the inter war period, the battalion was briefly reformed in 1921 as a part-time unit based initially in South Australia and then later in Tasmania. At different periods it was amalgamated with both the 10th and 12th Battalions. The battalion did not see combat during Wo