Lae fell more quickly than the Allies expected and as a result a follow up operation was mounted to secure the Huon Peninsula later in the month. Landing at Scarlet Beach in the first wave, two companies from the 2/13th secured the main beachhead while two others were also landed around Siki Cove on the first day of the operation. By October, the battalion occupied a position north of Langemak Bay which stretched in a dog-leg from Simbang north to Tirimoro. They were later involved in defending the beachhead against a Japanese counter-attack, and then the subsequent Australian advance inland as the Japanese withdrew towards Sio.