 On 1 June 1918, Lieutenant General John Monash succeeded Birdwood as commander of the Australian Corps, and Blamey was promoted to the rank of brigadier general to replace White as the corps Brigadier General General Staff (BGGS). He played a significant role in the success of the Australian Corps in the final months of the war. He remained interested in technological innovation. He was impressed by the capabilities of the new models of tanks. and pressed for their use in the Battle of Hamel, where they played an important part in the success of the battle. Monash acknowledged Blamey's role in the Australian Corps' success in the Battle of Amiens in August and the Battle of the Hindenburg Line in September. The Major General General Staff (MGGS) of the British Fourth Army, of which the Australian Corps was a part during these battles, Major General Archibald Montgomery-Massingberd, was a former instructor of Blamey's at Quetta. He declared himself "full of admiration for the staff work of the Australian Corps." Monash later wrote:
