Frontier conflict, commonly referred to as the frontier wars, was a phenomenon that occurred across Australia, including in Beeliar. In May 1833, a Beeliar man named Midjegoorong was "executed by firing squad, without trial". Following this execution, Midjegoorong's son Yagan had a bounty imposed on him by the local government. On 15 August 1833, two local shepherds found Yagan and killed him.