 Complete the following phrase:  Following the fighting around Roosevelt Ridge, the Allied advance on Salamaua continued. Mount Tambu was secured on 18 August, and operations in the area continued through the final week of August. The capture of Roosevelt Ridge enabled Allied artillery observers to control fires more effectively around Salamaua and in the days following they began shelling Tambu Bay heavily, while patrols were pushed forward of the ridge with a view to eventually clearing the Japanese from the Scout Ridge junction and pushing north of Roosevelt Ridge. Around the same time, the Allies launched a 