 The force at Romani , responsible for its defence when the battle began , consisted of infantry from the British 52nd ( Lowland ) Division , commanded by Major General W. E. B. Smith , and the Anzac Mounted Division commanded by Chauvel ( less the 3rd Light Horse Brigade ) . The 1st and 2nd Light Horse Brigades , ( less the 5th Light Horse Regiment , but with the New Zealand Mounted Rifles Brigade 's Wellington Mounted Rifle Regiment attached ) were commanded by Lieutenant Colonels J. B. H Meredith and J. R. Royston respectively . 
