Uploaded July 2026 | Updated September 2026, 45 minutes ago
Effective deterrence by denial depends on the Australian Defence Force’s ability to generate credible multi-domain effects across a vast and dynamic security environment. At the 2026 ASPI Defence Conference, ASPI’s Courtney Stewart was joined by AM Stephen Chappell DSC CSC OAM, Chief of Air Force; VADM Mark Hammond AO RAN, Chief of Navy; VADM Justin Jones AO CSC RAN, Chief of Joint Operations; and LTGEN Simon Stuart AO DSC, Chief of Army. The panel session examined how Defence is integrating maritime, land, air, space and cyber capabilities today, the critical gaps and practical constraints that remain, and the joint and combined approaches needed to credibly shape adversary risk calculations.
Effective deterrence by denial depends on the Australian Defence Force’s ability to generate credible multi-domain effects across a vast and dynamic security environment. At the 2026 ASPI Defence Conference, ASPI’s Courtney Stewart was joined by AM Stephen Chappell DSC CSC OAM, Chief of Air Force; VADM Mark Hammond AO RAN, Chief of Navy; VADM Justin Jones AO CSC RAN, Chief of Joint Operations; and LTGEN Simon Stuart AO DSC, Chief of Army. The panel session examined how Defence is integrating maritime, land, air, space and cyber capabilities today, the critical gaps and practical constraints that remain, and the joint and combined approaches needed to credibly shape adversary risk calculations.
