In another incident, two Anti-Coalition Militia attempted to attack the observation post from a different flank, Roberts-Smith again moved to support and neutralise one of these Militia. Roberts-Smith then realised that the forward edge of the observation post was not secure and made the decision to split the team and take up an exposed position forward of the patrol so he could effectively employ his sniper weapon. Whilst isolated, and in his precarious position, he observed a group of sixteen Anti-Coalition Militia advancing across open ground towards the observation post. Roberts-Smith effectively employed his sniper rifle to stop their advance whilst receiving very accurate small arms fire from another group of Militia to his flank. Roberts-Smith maintained the initiative and ensured that his patrol remained secure by holding this position without support for twenty minutes. He was eventually reinforced by his original team member and together they continued to hold off the Militia advance for a further twenty minutes until offensive air support arrived.