forward prior to the engagement also complicated the application of artillery support, which had to be switched to support each platoon as required rather than allowing it to be concentrated. Unable to see either platoon, the D Company forward observer was unsure of 11 Platoon's exact position. As a consequence 10 and 11 Platoons were each forced to fight their own battles, and despite the weight of the indirect fire increasingly becoming available to support the Australian infantry, the VC were able to apply superior firepower as they tried to isolate and attack each platoon in turn. To retrieve the situation, Smith planned to pull his company into an all-round defensive position, enabling his platoons to support each other fighting a co-ordinated battle and care for the wounded until a relief force could arrive. The VC moved to overrun the beleaguered force, but the dispersal of the Australian platoons made it difficult for them to find D Company's flanks and roll them up, and may have led the VC commander to believe he was engaging a much larger force. In the meantime, Buick repaired the 11 Platoon radio and re-established communications with company headquarters, and with Stanley, who was again able to adjust the artillery by radio. The VC succeeded in closing to within of 11 Platoon's position, and much of the artillery was beginning to fall behind them. Although the fire was probably impacting the VC rear area and causing casualties there, these assault troops had deliberately closed with the Australians to negate its effect. Buick estimated 11 Platoon was being assaulted by at least two companies; down to the last of their ammunition and with just 10 of its 28 men still able to fight, he feared they would soon be overrun, and were unlikely to survive beyond the next 10 to 15 minutes. Confident the rest of D Company would be attempting to reach them, but unable to see how that might occur, Buick requested artillery fire onto his own position despite the danger this entailed. Stanley refused, but after confirming 11 Platoon's precarious situation, he was able to walk the artillery in closer. Landing to their front, the artillery detonated among a large concentration of VC troops, destroying an entire assault line as they formed up. At 17:00, three US F-4 Phantoms arrived on station for an airstrike arranged by battalion headquarters. Ammunition shortage and urgent