 On 13 and 14 June the 24th Brigade Group continued operations aimed at forcing the Japanese garrison into the stronghold — dubbed " the Pocket " by the Australians . The 2 / 43rd Battalion secured the emergency airstrip at Timbalai on Labuan 's west coast on 13 June , and elements of the 2 / 28th Battalion continued to push west into the Pocket along MacArthur Road . A company from the 2 / 28th Battalion made another attack into the Pocket the next day after the 2 / 12th Field Regiment had fired 250 rounds into the area , but was forced to withdraw after being unable to overcome heavy resistance . By the conclusion of 14 June the Australians judged that , aside from the Pocket , the island was now secure . Porter assessed that an attack on this position would need to be made in strength using well @-@ coordinated forces . 
