The 57th Battalion was raised in Egypt on 18 February 1916 as part of the "doubling" of the AIF. Half of its recruits were Gallipoli veterans from the 5th Battalion, and the other half, fresh reinforcements from Australia. Reflecting the composition of the 5th, the 57th was predominantly composed of men from the suburbs of Melbourne. The battalion became part of the 15th Brigade of the 5th Australian Division.
Having only arrived in France in late June, the 57th became embroiled in its first major battle on the Western Front on 19 July, without the benefit of an introduction to the trenches in a "quiet" sector. The battle of Fromelles was a disaster. Fortunately for the 57th it was allocated a supporting role and suffered relatively light casualties compared to its sister battalions. This, however, meant that 57th carried the burden of holding the line in ensuing days for the battalion. Despite its grievous losses, the 5th Division continued to man the front in the Fromelles sector for a further two months.
Source: Australian War Memorial