[1] Occupying an ambush position astride a track running west from the border, in thick swampy jungle 1,300 metres (1,400 yd) inside Kalimantan, Byers was ordered to intercept an Indonesian force, believed to have already infiltrated into Sarawak, upon its return.

[2] Finally, at 13:26 on 15 June 1965, after silently lying in ambush for three days, the Australians observed a large Indonesian force to the east, moving close together one behind the other with their weapons slung.

The first three Indonesian soldiers had initially escaped unscathed, and they ran down the track to the west, only to be killed instantly by Claymores fired by the Australian cut-off party.

[2][4] Outnumbered, a fierce battle ensued with the Australians quickly silencing the Indonesian machine gun with small-arms fire while suffering one man wounded in the knee.

As a result, the Indonesians suffered a number of further casualties, including some of those wounded in the initial ambush, while a larger party which had come to investigate the action was also caught in the barrage.

[9] Meanwhile, the Australians had continued their withdrawal and successfully reached the border by 16:00, with their casualties later evacuated by helicopter from a prearranged landing zone inside Sarawak.

[8] Unlike the previous incidents, the ambush at Kindau did not remain unpublicised however, after a journalist managed to interview one of the Australian wounded in the British Military Hospital in Singapore.

[5] The fire support provided to 3 RAR had been particularly effective, as evidenced according to the commanding officer of the 4th Light Regiment, by the infantry buying the gunners "far too much beer".