1 August - 4 September 1968
Operation Lyre Bird
Keen to return to the Nui Dinh mountains, an active area for the enemy, the Officer Commanding
volunteered to command another land clearing operation.  The trail to be cleared was between the Nui
Thai Vais and the Nui Dinhs in AO Warburton, clearing from Route 15 to the north.

Initially W Company deployed along Route 15 in APCs with Engineers of 17 Construction Squadron, a Land
Clearing Team, and a section of Mortars.  Two Fire Support Bases were used during the operation - Hague
and Hokonui.  These were within range of the guns in Nui Dat. Generally, the APCs and one platoon
provided protection for the engineers, a platoon patrolled well out from the cut, and the third platoon
rested and protected the Fire Support Base. The enemy reacted quite vigorously to the operation so
elements of B Company later joined W Company to provide greater flexibility in the active patrol
programme. On 4 August, the enemy fired automatic weapons and rockets at sentries on the perimiter of
Hague and badly damaged two bulldozers. (One bulldozer was buried to extinguish the fire!)  Two members
of the Company were injured. On 12 August a platoon on patrol made contact with five Viet Cong who
quickly withdrew.  On the follow up an enemy camp was located which contained a large quantity of
ammunition and supplies hidden deep in a tunnel system.  During the search of the camp two enemy
walked in, one was killed and the other escaped.  Although many signs of the enemy presence were picked
up and trails followed, it was not until 29 August that an estimated ten enemy were sighted and engaged
with artillery and mortar fire with unknown results.  Also on the 29th an enemy hutted camp of fourteen
huts and cookhouse was located and destroyed.

The operation lasted five weeks and in that time a trail through the jungle some 200 metres wide and
13,500 metres long was cleared,  This was an excellent result considering the heavy rain reduced the area
to deep mud and stinking slush.  One night, while at Fire Support Base Hokonui, the Command Post had to
be vacated as it turned into a swimming pool!  W Company returned to Nui Dat on 4 September to prepare
for Operation Innamincka.