 Complete the following phrase:  The capture of Lae was followed up quickly by another operation to secure Finschhafen. Landing at Scarlet Beach, north of the objective, the 20th Brigade formed the divisions lead assault element. After overcoming light opposition around the beachhead, the brigade began advancing on Finschhafen, leaving the 217th to secure the beachhead. Japanese opposition intensified as they approached the objective, and flanking units around Sattelberg threatened the brigades rear, forcing Windeyer to deploy forces to guard his flanks and rear. By 2 October, the brigade had secured Finschhafen, having overcome strong resistance crossing the Bumi River, and around Kakakog. After this, reinforcements from the 9th Division arrived and the brigades headquarters was moved to Heldsbach while elements were deployed at Simbang, Timoro, Kumawa and Jivevaneng. The Japanese launched a strong counterattack on Scarlet Beach in October, during which the 217th was isolated around Jivevaneng; the 213th was subsequently moved from Katika to fight their way through to the 217th, after which the brigade began pushing towards Sattelberg. In November, the 26th Brigade took over the advance, and the 20th went into reserve around Heldsbach, although the 215th was detached to the 24th Brigade to push the advance into the Christmas Hills. In December, the 20th Brigade resumed the advance from Masaweng River, moving along the coast as the Australians pushed towards 