The National Security Podcast Australia’s Chief of the Defence Force: reflections on half a century of service
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Nov 20, 2025 In this insightful conversation, Admiral David Johnston, the newly appointed Chief of the Defence Force and a veteran of the Royal Australian Navy, reflects on nearly 50 years of service. He discusses the importance of a maritime focus for Australia's defence strategy, highlighting the need for advanced capabilities like submarines. Johnston emphasizes adapting to evolving threats, the significance of partnerships in the Indo-Pacific, and lessons from Ukraine's innovations in warfare. He encourages a new generation to consider careers in the ADF, underscoring their vital role in national security.
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Career Forged By Gulf War And Regional Operations
- David Johnston traced his career from joining the Navy in 1978 through experiences in the Gulf War and Afghanistan that shaped his outlook.
- He described how regional missions like Bougainville and East Timor refocused Australia on proximate security responsibilities.
Maritime Reality Underpins Defence Planning
- Australia is intrinsically maritime: trade, cables and force projection rely on the sea and seabed.
- Defence investment reflects this with ~38% of the integrated investment program focused on maritime capabilities.
Three Pillars That Reshape Australian Defence
- NDS24 rests on three pillars: focus on the proximate region, true integration across services and national partners, and valuing time differently.
- Shorter warning timelines force prioritisation in readiness, acquisitions, training and partnerships.