[4] Drawing its manpower from the state of New South Wales, it undertook training at the ANZAC Rifle Range in Long Bay, Sydney and Broadmeadows and Williamstown in Melbourne.

[5] Along with the rest of the 4th Brigade, under the command of then Colonel John Monash, the 13th Battalion took part in the Landing at Anzac Cove, arriving late on 25 April 1915.

On 8 August 1915 an attempt was made to break out from this position and the battalion took part in a costly, and only partially successful, attack on Hill 971.

[4] From there, the battalion returned to Egypt where the AIF underwent a period of training and reorganisation which saw the raising of two new divisions which effectively doubled its size.

[4][6] In June 1916, the battalion embarked for France to join other units of II Anzac Corps, and for the next two years it served in the trenches along the Western Front.

[4] Later, in February 1917, Captain Harry Murray, became the first member of the battalion to earn the Victoria Cross when he was involved in an attack near Gueudecourt.

Later, at Bullecourt in April, the battalion, along with most of the 4th Brigade, suffered heavy losses when they ran up against a strongly defended German position without the tank support that they had been promised.

[4] The 13th Battalion was involved at the outset, taking part in the fighting around Amiens on 8 August 1918, which produced considerable gains for the Allies and was subsequently described as one of the greatest successes in a single day on the Western Front.

[4] On 18 September, the battalion took part in its last offensive action, this time around Le Verguier, and it was here that Sergeant Maurice Buckley, serving under the assumed name of Gerald Sexton, performed the deeds that led to him being awarded the Victoria Cross.

[4] In 1921, the decision was made to perpetuate the numerical designations and battle honours of the AIF by re-raising those units as part of the Citizens Force.

[9] Upon formation, the newly raised battalion had drawn personnel from parts of the 13th and 22nd Infantry Regiments, and through its link with these units inherited the battle honour "South Africa 1900–1902".

[14] The decision to suspend compulsory training, as well as the hardships associated with the Great Depression meant that many Militia units were afflicted by low manning levels.