 Complete the following phrase:  After undertaking further jungle warfare training and serving as garrison troops loading and unloading ships, the 37th52nd Battalion, along with the rest of the 4th Brigade, was detached to the 9th Division to provide support during the Huon Peninsula campaign. Tasked with taking over responsibility for defending the beachhead from the 20th Brigade, they arrived in early September 1943. After defending Red Beach and supporting the 