sentences:  The Australian troops belonged to the 7th Brigade, with the 25th Infantry Battalion being the most heavily engaged, although the 9th Infantry Battalion and the 61st Infantry Battalion also took part in the fighting.Against Japanese tactics that included massed attacks, the Australians utilised armour and artillery, and in the end these proved decisive.Commencing in late March, after the Australian advance had been halted by wet weather, over the course of several days the Japanese launched several probing raids followed by heavy attacks against the Australians.