{{flagicon|Australia}}Walter Dexter"},"commander2":{"wt":"{{flagicon|Empire of Japan|alt}}Katsutoshi Araki"},"units1":{"wt":"[[2/6th Battalion (Australia)|2/6th Infantry Battalion]]"},"units2":{"wt":"[[66th Infantry Regiment (Imperial Japanese Army)|66th Infantry Regiment]]"},"strength1":{"wt":"80–150"},"strength2":{"wt":"1,500"},"casualties1":{"wt":"11 killed,12 wounded"},"casualties2":{"wt":"41 killed,131 wounded"}},"i":0}}]}" id="mwBw">@media all and (min-width:720px){.mw-parser-output .desktop-float-right{box-sizing:border-box;float:right;clear:right}}.mw-parser-output .infobox.vevent .status>p:first-child{margin:0}
Battle of Lababia Ridge | |||||||
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Part of World War II, Pacific War | |||||||
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Belligerents | |||||||
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Commanders and leaders | |||||||
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Units involved | |||||||
2/6th Infantry Battalion | 66th Infantry Regiment | ||||||
Strength | |||||||
80–150 | 1,500 | ||||||
Casualties and losses | |||||||
11 killed, 12 wounded | 41 killed, 131 wounded |
The Battle of Lababia Ridge was fought from 20–23 June 1943 in the Territory of New Guinea during World War II. Part of the Salamaua–Lae campaign, the battle involved Australian and Japanese troops who clashed on the ridge, which was about 20 kilometres (12 mi) south of Salamaua, near Mubo, over the course of several days. The battle was fought in conjunction with several other actions in the region as the Allies attempted to draw Japanese attention away from Lae, where they launched seaborne landings in mid-September 1943, in conjunction with airborne landings around Nadzab. The fighting around Lababia Ridge took place at the same time as the Battle of Mubo, after two battalions of Japanese infantry launched a counter-attack on a depleted Australian company. The Australians, supported by Royal Australian Air Force fighter-bombers, managed to hold off the initial Japanese attacks before being reinforced by another depleted company. Fighting continued over the course of three days before the Japanese withdrew.
In March 1943, Australian troops from the 2/7th Infantry Battalion had pushed forward from Wau, which had been secured in late January and set up a defensive position on Lababia Ridge [1] a 3,000-foot (910 m) feature about 20 kilometres (12 mi) south of Salamaua, near Mubo, which was situated around the Bitoi and Buyawim Rivers that was, according to historian John Miller, strategically important as it provided clear observation of "Nassau Bay to the southeast, Bitoi Ridge to the north, and the Komiatum Track which served as the line of communications from Salamaua to the Japanese facing the Australians". [2]
After several failed attacks on the Pimple in early May during the fighting around Mubo, Captain Leslie Tatterson's company, consisting of just 65 men, had withdrawn from the Pimple towards Lababia Ridge, establishing a position was forward of the main Australian base camp on the western end of the ridge. On 9 May, they came under heavy attack as the Japanese launched a concerted counter-attack over the course of several days. It was eventually turned back, with heavy Japanese casualties. [3] [4]
On 23 May, the commander of the Australian 17th Brigade, Brigadier Murray Moten, issued orders for the 2/6th Infantry Battalion, under the command of Lieutenant Colonel Frederick Wood, to relieve the 2/7th around Lababia Ridge. The advanced elements of the battalion stepped off on 27 May. Moving along the narrow Buisaval Track, the going was slow; while they waited for their relief, the 2/7th continued patrolling the area and the day that the 2/6th set out towards them, there was further fighting around the Pimple when a small group of Australians were engaged by a Japanese strong point during a reconnaissance patrol, resulting in the loss of two Australians killed. The 2/6th arrived on 11 June, after which the 2/7th moved back towards Wau and Bulolo, where they were placed into the role of divisional reserve. [5]
Upon effecting their relief of the 2/7th, Wood positioned his battalion with companies at Mat Mat Hill, Waipali and the Saddle, while battalion headquarters was positioned at Guadagasal. Another company, 'D' Company, under the command of Captain Walter Dexter occupied Lababia Ridge, [6] occupying a position further up the slope, but further south than that which Tatterson's company had held. [7] They had been dispatched earlier in May to support the 2/7th's right flank, and had carried out several reconnaissance patrols towards Duali and the coast, to gather information prior to the landing of US troops around Nassau Bay. In late May, the Japanese high command determined that they would attempt to force the Australians off Lababia Ridge, and began making preparations for an assault, rotating their forces in the area, with the exhausted 102nd Infantry Regiment, which had been fighting the Australians since the Battle of Wau, being replaced by two battalions of the 66th Infantry Regiment, under the command of Colonel Katsutoshi Araki. [8]
Supplies and ammunition were brought up towards the position along the steep slope from the Komiatum Ridge, [9] and on 20 June, Japanese patrols from the 66th, with guides from the 102nd, began probing the Australian position on Lababia Ridge, which was held by about 80 men. Japanese sappers defused the booby traps that the Australians had created out of piano wire and hand grenades, but being unfamiliar with the mechanisms of the Australian grenades, left them in place, rather than using them against the defenders. Sporadic firing occurred throughout the day, but no major attack developed. The following day, 21 June, Australian patrols noticed signs of Japanese activity along the track towards the observation post that had been established further east along the ridge. Around 07:30 the telephone line to the post was cut and shortly afterwards, Japanese troops approaching the main Australian position began setting off booby traps that had been set up as early warning devices. Around 14:00 the Japanese launched an assault from the north and north-east of the Australian position, supported by mortars. This was repelled, but followed up by another attack in the early afternoon, including a bayonet charge. Over the course of the afternoon, a total three attacks were made to the sound of bugle calls. [10] While intended to frighten the Australian soldiers, these actually served to warn the defenders of their approach. [11]
These attacks were as turned back and during the night the Australian company was reinforced by another platoon – 'C' Company's 13 Platoon, under Corporal Keith Mew – consisting of about 70 men. [6] As it grew dark, the Australians sent out a patrol to make contact with their forward positions, and subsequently found that they had been wiped out in the attack. Meanwhile, amidst heavy rain, the Japanese recovered their wounded and continued to reduce the booby traps in front of the Australian positions. [12] Over the course of 22 and 23 June more Japanese attacks took place as Araki's two battalions from the 66th Infantry Regiment, consisting of about 1,500 men, attempted to take the position. Despite numerical superiority, these attacks were repelled by the Australians who received close air support from Royal Australian Air Force Bristol Beaufighter aircraft, which strafed the attacking Japanese infantrymen after the Australians marked their forward positions with smoke. During 22 June, the Japanese brought up a mountain gun, but this proved inaccurate and ineffective, with only two rounds landing within the Australian position; meanwhile, probing attacks on the Australian flanks were broken up by Australian mortar fire. The fighting continued early the following day, with the Japanese laying down heavy machine gun and mortar fire, but this was only designed to help cover their withdrawal. The fighting subsequently ceased early in the afternoon of 23 June when the Japanese, lacking further reinforcements with which to continue the fight, discontinued their attacks. [13]
Casualties amounted to 41 or 42 killed and 131 wounded for the Japanese, and 11 killed and 12 wounded for the Australians. [6] [11] Left mainly to his own devices during the battle, for his leadership during the main Japanese assault on the Australian positions around Lababia Ridge, Dexter was later awarded the Distinguished Service Order, while several of the Australian platoon commanders – Lieutenants Edward Exton and Laurence Roach – received Military Crosses, and one of the platoon sergeants, Sergeant John Hedderman, received a Military Medal. The Australian brigade commander, Moten, later singled Dexter out for praise, stating that he had taken "...every trick" during the battle. One of his peers, Captain Jo Gullett described him as a "...too exacting to be popular" although he was a "...thorough soldier, a good trainer of men and a painstaking tactician". [14] He later went on to command the 61st Infantry Battalion. [15]
Following actions around Lababia Ridge, further fighting in the Salamaua area followed as the Allied advance towards the coast pushed the Japanese back. Advancing towards Salamaua in an effort to draw reinforcements away from Lae, where a seaborne landing was planned for mid-September in conjunction with an airborne landing at Nadzab to capture the town in a pincer movement, further actions were fought by Australian and US forces at Bobdubi, Mount Tambu, Nassau Bay, and Roosevelt Ridge. Salamaua was eventually taken on 11 September 1943. [16] [17] Lae fell shortly afterwards. In the aftermath, the Japanese withdrew towards the north coast. The Australians subsequently pursued them into the Markham and Ramu Valleys. [18]
The 6th Division was an infantry division of the Australian Army. It was raised briefly in 1917 during World War I, but was broken up to provide reinforcements before seeing action. It was not re-raised until the outbreak of World War II, when it was formed as a unit of the Second Australian Imperial Force. Throughout 1940–41 it served in the North African Campaign, the Greek campaign, on Crete and in Syria, fighting against the Germans, Italians and Vichy French. In 1942, the division left the Middle East and returned to Australia to meet the threat of Japan's entry into the war. Part of the division garrisoned Ceylon for a short period of time, before the division was committed to the New Guinea campaign. In New Guinea, its component brigades had a major role in the successful counter-offensive along the Kokoda Track, at Buna–Gona and around Salamaua–Lae in 1942–43. Throughout late 1943–44, the division was re-organised in Australia before being committed as a complete formation to one of the last Australian operations of the war around Aitape–Wewak in 1944–45.
The 2/6th Battalion was an infantry battalion of the Australian Army that served during the Second World War. Raised in October 1939 as part of the all-volunteer Second Australian Imperial Force, the battalion formed part of the 6th Division and was among the first troops raised by Australia during the war. Departing Australia in early 1940, the 2/6th were deployed to the Middle East where in January 1941, it took part in the first action of the war by Australian ground forces, the Battle of Bardia, which was followed by further actions around Tobruk. Later, the 2/6th were dispatched to take part in the Battle of Greece, although they were evacuated after only a short involvement in the campaign. Some members of the battalion subsequently fought on Crete with a composite 17th Brigade battalion, and the battalion had to be re-formed in Palestine before being sent to Syria in 1941–42, where they formed part of the Allied occupation force that was established there in the aftermath of the Syria–Lebanon campaign.
The 2/5th Battalion was an infantry battalion of the Australian Army that operated during World War II. It was raised at Melbourne, Victoria, on 18 October 1939 as part of the Second Australian Imperial Force, attached to the 17th Brigade of the 6th Division. The 2/5th was one of only two Australian infantry battalions to fight against all of the major Axis powers during the war, seeing action against the Germans and Italians in Egypt, Libya, Greece and Crete, and the Vichy French in Syria, before returning to Australia in 1942 to fight the Japanese following a period of garrison duties in Ceylon, where it formed part of an Australian force established to defend against a possible Japanese invasion.
The 2/7th Battalion was an infantry battalion of the Australian Army raised for service during World War II. Formed as part of the 6th Division shortly after the outbreak of the war as part of the all-volunteer Second Australian Imperial Force, the 2/7th Battalion's initial personnel were recruited primarily from the state of Victoria, although later reinforcements were drawn from most other Australian states. Basic training was completed in Australia, after which the battalion embarked for the Middle East as part of the first batch of Australian troops to deploy overseas. Further training was undertaken in Palestine before the battalion went into action against the Italians in January 1941. After participating in the successful capture of Bardia and Tobruk, it was committed to the disastrous Battles of Greece and Crete, where the battalion was essentially destroyed after the majority of its personnel were captured.
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The Salamaua–Lae campaign was a series of actions in the New Guinea campaign of World War II. Australian and United States forces sought to capture two major Japanese bases, one in the town of Lae, and another one at Salamaua. The campaign to take the Salamaua and Lae area began after the successful defence of Wau in late January, which was followed up by an Australian advance towards Mubo as the Japanese troops that had attacked Wau withdrew to positions around Mubo. A series of actions followed over the course of several months as the Australian 3rd Division advanced north-east towards Salamaua. After an amphibious landing at Nassau Bay, the Australians were reinforced by a US regimental combat team, which subsequently advanced north up the coast.
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The New Guinea Volunteer Rifles (NGVR) was an infantry battalion of the Australian Army. It was initially raised as a unit of the Militia from white Australian and European expatriates in New Guinea upon the outbreak of the Second World War in 1939, before being activated for full-time service following the Japanese landings in early 1942. NGVR personnel then helped rescue survivors of Lark Force from Rabaul in February and March 1942. Between March and May, the NGVR monitored the Japanese bases which had been established in the Huon Gulf region, being the only Allied force in the area until the arrival of Kanga Force at Wau in May. The battalion subsequently established observation posts overlooking the main approaches and reported on Japanese movements.
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The Papuan Infantry Battalion (PIB) was a unit of the Australian Army raised in the Territory of Papua for service during the Second World War. Formed in early 1940 in Port Moresby to help defend the territory in the event of a Japanese invasion, its soldiers were primarily Papuan natives led by Australian officers and non-commissioned officers. Following the outbreak of the Pacific War, the PIB served in many of the Allied campaigns in New Guinea; however, due to the nature of its role its sub-units mainly operated separately, attached to larger Australian and US Army units and formations. Slow in forming, the first members of the PIB were not officially posted in until March 1941. By 1942 it consisted of only three companies, all of which were under-strength and poorly equipped. It was subsequently employed on scouting, reconnaissance and surveillance patrols against the Japanese, where the natural bushcraft of its native soldiers could be used to their advantage. The PIB was sent forward in June 1942 to patrol the northern coast of Papua and was dispersed over a wide area. These small parties were the first to make contact with the Imperial Japanese forces upon their landing in Papua, before participating in the Kokoda Track campaign. As part of Maroubra Force, the PIB fought alongside the Australian 39th Battalion at Kokoda, Deniki, and Isurava as the Japanese forced them back along the Kokoda track, but was withdrawn before the campaign finally turned in favour of the Australians.
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The Battle of Roosevelt Ridge was fought between 21 July and 14 August 1943 between US and Japanese forces in the Salamaua area of the Territory of New Guinea during World War II. The battle was fought in conjunction with several other actions of the Salamaua–Lae campaign. Throughout the first half of 1943, Australian forces had clashed with the Japanese around Wau and then Mubo as they had pushed the Japanese back towards Salamaua. As the campaign had developed, the Japanese had brought in reinforcements from elsewhere in New Guinea, effectively reducing their garrison, particularly around Lae. Following fighting on Lababia Ridge, the Australians had begun securing positions around Bobdubi, with a view to extending towards Mount Tambu.
The Battle of Mount Tambu was a series of actions fought in the Salamaua area of the Territory of New Guinea between Allied and Japanese forces, which took place between 16 July and 18 August 1943, during World War II. The battle formed part of the wider Salamaua–Lae campaign and was fought in the final stages of the campaign, which had seen a combined Australian and US force advance from Wau towards Salamaua following the repulse of the Japanese attack on Wau in late January and early February 1943. After several frontal assaults on the position by Australian and US infantrymen were rebuffed by determined Japanese defenders, an indirect approach was sought and flanking moves were undertaken to cut off the Japanese supply route along the Komiatum Track. This succeeded in eventually forcing the Japanese off the position as they withdrew to avoid encirclement.