 Complete the following phrase:  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. For the first four months, between May and August, they undertook defensive operations as the Anzacs attempted to establish themselves on the narrow beachhead that had been captured on the peninsula. On 8 August 1915 