Australia’s defence spending surge: A structural realignment under US hegemony or domestic militarisation?

Indigenous Australian communities, particularly in the Northern Territory, have long contested the militarisation of their lands, which has led to environmental destruction, cultural desecration, and displacement. The expansion of defence infrastructure, such as the joint US-Australia Pine Gap facility, has been linked to uranium mining on sacred sites and the erosion of traditional land rights. These communities argue that 'national security' is being weaponised against them, with little regard for their sovereignty or ecological knowledge. The lack of consultation in defence spending decisions reflects a broader pattern of state violence against Indigenous peoples.

Australia’s defence spending trajectory is deeply rooted in its post-WWII alignment with US hegemony, formalised by the 1951 ANZUS Treaty and reinforced by the 1987 Defence of Australia policy. The 2020s surge mirrors Cold War-era militarisation, where defence budgets were justified by external threats (e.g., Soviet expansion) rather than domestic needs. The 2023 AUKUS pact further institutionalised this dependency, tying Australia’s military-industrial complex to US supply chains and strategic priorities. Historical parallels include the Vietnam War era, when Australia’s defence spending was similarly justified by alliance obligations, leading to long-term social and environmental costs.

In the Pacific Islands, Australia’s defence spending is often viewed as a form of neo-colonialism, particularly given the legacy of British and US military bases in the region. Pacific leaders like Fiji’s former Prime Minister Frank Bainimarama have criticised Australia’s militarisation as a threat to regional stability, citing its role in undermining climate resilience efforts. In contrast, some Asian nations—such as Japan—have historically accepted US military presence as a pragmatic necessity, though public opposition is growing due to fears of entanglement in US-China conflicts. This cross-cultural divide underscores how 'security' is framed differently across geopolitical contexts.

Defence spending increases are often justified using threat assessment models that prioritise military solutions over diplomatic or economic ones, despite evidence that military interventions rarely resolve conflicts sustainably. Studies show that reallocating even 10% of global military budgets to climate adaptation or healthcare could save millions of lives annually, challenging the securitisation narrative. The lack of transparency in defence procurement—where costs are often inflated due to lobbying—further distorts spending priorities. Scientific consensus also highlights the environmental impact of military activities, from carbon emissions to ecosystem destruction, which are rarely factored into cost-benefit analyses.

For many Indigenous Australians, the militarisation of their lands is a spiritual violation, disrupting sacred sites and ancestral connections to Country. Artists like Vernon Ah Kee and Richard Bell have critiqued Australia’s defence policies through works that juxtapose military imagery with Indigenous resistance, highlighting the cultural erasure inherent in securitisation. In Pacific cultures, traditional navigation and communal governance systems offer alternative models of security rooted in reciprocity and ecological balance, contrasting sharply with Western militarised approaches. These artistic and spiritual perspectives challenge the dominant narrative by centring land, culture, and intergenerational responsibility.

If current trends continue, Australia’s defence spending could exceed 3% of GDP by 2030, locking in a militarised economy that prioritises US alliance obligations over domestic needs. Scenario modelling suggests this path could lead to a 'security dilemma' in the Indo-Pacific, where increased militarisation triggers arms races with China and North Korea, escalating regional tensions. Alternative futures include a 'Pacific Security Compact' where Australia shifts focus to climate resilience and Indigenous-led land management, reducing reliance on US military frameworks. The long-term risks of this trajectory include economic stagnation, environmental degradation, and the erosion of democratic oversight in defence policy.

Pacific Island nations, particularly those most vulnerable to climate change, are rarely consulted in Australia’s defence policy decisions, despite bearing the brunt of militarisation’s environmental and social costs. Women’s peace groups, such as the Australian Feminist Peace Network, argue that defence spending exacerbates gendered violence by normalising militarised masculinity and diverting funds from social services. Refugees and asylum seekers, often framed as 'security threats' in defence discourse, are systematically excluded from debates about spending priorities. The voices of defence industry workers—who could transition to green jobs—are also marginalised in favour of narratives that equate security with military expansion.