After the 'Great Retreat' of March 1918, CCXCVIII AFA Bde spent 31 March to 9 April 1918 refitting, before returning to the line with 58th Division in time for the fighting round Villers-Bretonneux. During this battle the brigade transferred to the neighbouring 5th Australian Division, and went with that formation to the Australian Corps. It remained with the Australians in Fourth Army throughout the summer of 1918, supporting different Australian divisions or acting as mobile Corps reserve during the Battle of Amiens (8 August) and the Second Battle of the Somme (21 August–2 September). The keynote of these attacks was thorough preparation and execution of the artillery fireplan, and then rapid movement of the field batteries behind the advancing infantry.