Australian tanks also played a role in the Borneo Campaign in 1945. In a series of amphibious assaults between 1 May and 21 July, the Australian I Corps, under Lieutenant General Leslie Morshead, attacked Japanese forces occupying the island. The Matilda tanks of C Squadron, &lt;a href="2/9th%20Armoured%20Regiment%20%28Australia%29"&gt;2/9th Armoured Regiment&lt;/a&gt; were attached to the 26th Brigade Group during the campaign which opened with Oboe 1, with a landing on the small island of Tarakan, off the north east coast on 1 May 1945, with the fighting continuing into June with the tanks taking part in the advance along the Anzac and Bourke Highways, helping to secure the airfield and the oilfields. This was followed by Oboe 6, in which the remainder of the 2/9th Armoured Regiment was attached to the 9th Division, on 10 June 1945 with simultaneous assaults on the island of Labuan and the coast of Brunei, in the north west of Borneo. B Squadron took part in the landing at Labuan supporting the 24th Brigade's advance, assisting in the capture of the airfield, and various positions along the MacArthur Road. At the same time, A Squadron landed on the Borneo peninsula, securing the town before being used in a defensive role due to the impenetrable terrain further inland, which was only passable on foot.