Complex sentence: The New Zealand Mounted Rifles Brigade was responsible for the defence of the northern perimeter of the ANZAC beach-head, holding a sector from the position known as Walkers Top down the ridge line to the sea.
Split into simpler sentences: The New Zealand Mounted Rifles Brigade was responsible for the defence of the northern perimeter of the ANZAC beach-head. From the position known as Walkers Top down the ridge line to the sea.