 The light horse had gradually withdrawn back until , at about 11 : 00 , the main German and Ottoman attack was stopped by well directed fire from the Royal Horse Artillery batteries of the Anzac Mounted Division and by light horse rifle and machine gun fire , to which the 52nd ( Lowland ) Division contributed considerable firepower . The attackers appeared to have exhausted themselves , but they held their ground while Austrian and Ottoman artillery of various <unk> , including 5 @.@ 9 " and 10 @.@ 5 cm guns , fired on the defenders and their camps , and German and Ottoman aircraft severely bombed the defenders . The three columns of the German , Austrian and Ottoman attacking force were brought to a standstill by the coordinated , <unk> and determined defence of the 1st and 2nd Light Horse Brigades and the 52nd ( Lowland ) Division . 
