defenders and cleared the remaining resistance from Labuan. After the battle 180 Japanese dead were counted, bringing the total killed during the fighting on Labuan to 389. Against this the Australians suffered 34 killed and 93 wounded. Brunei and Muara Island The second Allied landing that took place on 10 June, consisted of two battalions of Brigadier Victor Windeyer's 20th Brigade—2/15th and 2/17th Battalions—landing at Muara Island and on the mainland peninsula north of Brooketon, supported by a second squadron of Matildas from the 2/9th Armoured Regiment. The 20th Brigade's third battalion, the 2/13th, was held back in brigade reserve. Meanwhile, in the interior, Dayak tribesmen supported by Allied operatives commenced their guerrilla campaign on 9 June. Lightly armed, and with only limited training, these guerrillas sought to harass the withdrawing Japanese, while avoiding decisive engagement. In this role, they met with some success, but were in some cases forced to withdraw in the face of heavy opposition. The troops that had landed near Brooketon on the mainland advanced on Brunei, which was captured on 13 June by the 2/17th Battalion after several minor section and platoon level actions over several days. The 2/15th, which had earlier secured Muara Island, secured Limbang on 18 June, advancing by landing craft up the river in the south-west of Brunei Bay. The two 20th Brigade battalions were now joined by the 2/13th Battalion, which had conducted an unopposed landing at Lutong on 20 June, supported by Spitfire and Kittyhawk fighters operating from Labuan, before continuing their advance down the south-western coast and then overland, passing through Miri and Seria on their way towards Kuching. At Seria the Australians found the 37 oil wells ablaze, having been deliberately lit by the Japanese defenders as they withdrew, and engineers from the 2/3rd Field Company were called up to put out the fires, a task which took over three months to complete. Kuala Belait was reached on 24 June. Having secured its objectives, the 20th Brigade then began patrolling operations, using landing craft to move quickly along the various rivers and streams that punctuated the coastline. The initial priority of Japanese troops on the mainland was to withdraw inland. As a result, only minor clashes occurred, against Japanese rearguards, which were generally poorly equipped and inexperienced. Resistance and aggressiveness amongst these rearguard elements stiffened as the Australians moved beyond Miri. Generally, the guerrilla forces in the