 Complete the following phrase:  Walker now oversaw the 1st Divisions preparations for the August Offensive in which the division would play a supporting role to the main attack by the New Zealand and Australian Division and the British IX Corps landing at Suvla. The 1st Divisions main task was a diversionary attack at Lone Pine. A secondary action was an attack on German Officers Trench from which Turkish machine guns enfiladed neighbouring positions, notably Quinns Post and 