 The Japanese attack did not delay the Australian assault on the Pocket . At 10 am on 21 June , C Company of the 2 / 28th Battalion began to advance to the west along Lushington Ridge , and D Company moved south from Eastman Spur . D Company was supported by a troop of three conventional Matilda tanks and two Frog flamethrowers . C Company advanced about half of the way into the Pocket before being halted by Norman who was concerned that they might be accidentally attacked by D Company , which was also making good progress . The force built around D Company subsequently completed the occupation of the Pocket , with the flamethrower tanks playing a key role . The Japanese soldiers who had survived the artillery bombardment offered little resistance to the Australian forces . The 24th Brigade assessed that 60 Japanese personnel were killed in the final assault on the Pocket , with 117 being killed by the artillery bombardment which had preceded it . 
