- 86 - Pacific War - Fall of Mubo & battle of Kolombangara, July 11-18, 1943

Last time we spoke about the amphibious assaults in New Georgia, New Guinea and the naval battle of Kula Gulf. The boys on New Guinea were edging ever closer to their objective of Lae while drawing the Japanese attention elsewhere. In the Solomons, Admiral Kusaka tossed as many aircraft as he could to thwart the multiple allied landings, but it was to no avail. Having depleted his airpower, now he turned to the navy to see if they could reinforce New Georgia before another Guadalcanal situation occurred. Rear Admiral Teruo Akiyama was given the task of launching a Tokyo Express to New Georgia while also trying to give some fight to the enemy. Aboard his flagship the Niizuka, Akiyama did indeed give a fight to the Americans, showcasing a brand new type of radar and the ever trusty type 93 long lance torpedoes. The Japanese landed a few of their boys and now the real fight for New Georgia would begin.  This episode is the Fall of Mubo & battle of Kolombangara  Welcome to the Pacific War Podcast Week by Week, I am your dutiful host Craig Watson. But, before we start I want to also remind you this podcast is only made possible through the efforts of Kings and Generals over at Youtube. Perhaps you want to learn more about world war two? Kings and Generals have an assortment of episodes on world war two and much more  so go give them a look over on Youtube. So please subscribe to Kings and Generals over at Youtube and to continue helping us produce this content please check out www.patreon.com/kingsandgenerals. If you are still hungry for some more history related content, over on my channel, the Pacific War Channel you can find a few videos all the way from the Opium Wars of the 1800’s until the end of the Pacific War in 1945.  So the past few weeks we have been chaotically juggling multiple events across the Solomons and New Guinea and this week it shall be no different. So let's first jump into New Guinea. General MacArthur’s forces managed to pull off the Nassau Bay landing, getting General Savige some much needed reinforcements on his eastern flank and a new supply route. Now the landing at Nassau Bay was part of an ongoing operation codenamed Doublet, aimed at dislodging the Japanese from Bobdubi and Mubo. Taking these were necessary for the future push against Lae and Salamaua. Mubo held an airfield and its capture would greatly facilitate troop movements towards Salamaua. The movement in the interior towards Mubo was complicated by rough terrain. There were a series of ridges that could be defended sternly by the Japanese. As we have seen for weeks, Roosevelt ridge, the pimple, Green Hill, Observation hill, Lababia ridge and Bitoi ridge proved to be very heavily defended. For the Japanese headquarters, all of the allied offensives were confusing as to where exactly the main target was to be. General Nakano remained confident, Salamaua was the main target and he acted accordingly by beefing up the defense there. He ordered Major General Chuichi Muroya, the commander of the 51st infantry division to fortify and defend Salamaua. As part of this, he also ordered Muroya to dispatch around 1000 men to halt American forces trying to move up the coast towards Lake Salus. Now by July 2nd Brigadier Moten’s plan was for the 2/6th and 2/5th battalions to take Mubo and Observation hill. While the new Taylor Force would capture Bitoi ridge and then the ridge between Bui Alang and Bui Kumbul Creeks. After this the forces would link up and the Japanese lines of communications along the Buigap Creek would be severed. While this was going on the 15th brigade who was working in conjunction with the newly landed troops, were performing an offensive directed at reducing the Japanese presence around Lae and Salamaua. Part of this offensive involved the inexperienced 58th/59th battalion who had a hell of a time facing the Japanese at Bobdubi ridge. The 58th/59th battalion were two previous militia battalions from Victoria. Initiall