 On 24 March , the Turks formed the Fifth Army , a force of over 100 @,@ 000 men , in two corps of six divisions and a cavalry brigade , commanded by the German general Otto <unk> von Sanders . The Fifth Army deployed the III Corps at Gallipoli and the XV Corps on the Asiatic coast . The 5th Division and a cavalry brigade were on the European mainland , positioned to support the III Corps if required . The III Corps had the 9th Division ( 25th , 26th and 27th Infantry Regiments ) , the 19th Division ( 57th , 72nd and 77th Infantry Regiments ) and the 7th Division ( 19th , 20th and 21st Infantry Regiments ) . The 9th Division provided coastal defence from Cape Helles north to <unk> , where the 7th Division took over , while the 19th Division at <unk> was the corps reserve . The area around Gaba Tepe , where the ANZAC landings would take place , was defended by a battalion of the 27th Infantry Regiment . 
