 Complete the following phrase:  After its return to Egypt, the regiment  along with the rest of the 1st Light Horse Brigade  became part of the ANZAC Mounted Division, and was given responsibility for the defence of the Suez Canal from raiding Senussi Arabs. On 4 August 1916, they fought in the Battle of Romani, before being withdrawn to rest and refit. The regiment rejoined the brigade in November and took part in the battles of Maghaba and 