Coyle, who is currently serving as Chief of Joint Capabilities, will take over the role later this year. Prime Minister Anthony Albanese described the appointment as a historic milestone for Australia’s defence forces.

Coyle has served in the Australian Defence Force for more than three decades and has held senior leadership roles across operations, logistics and strategic planning. Her appointment follows broader efforts to improve diversity and representation within Australia’s military leadership. Defence officials said the transition comes amid increasing regional security challenges and ongoing investment in defence capabilities.