 The main part of the 20th Division was moved down from Madang as the Japanese began concentrating their forces around Sattelberg, with the main force arriving there on 11 October.The Japanese plans became known to the Australians through captured documents and by mid-October 1943 the Australian 24th Infantry Brigade had been brought up to reinforce the 20th.When the Japanese counterattack came, signalled by a bonfire on Sattelberg, the first wave fell upon the 24th Brigade around Jivevaneng on 16 October but the attack, having been put in a piecemeal fashion, was pushed back.