One Nation MP Barnaby Joyce has asserted that Australia’s defence policy cannot be sufficiently robust without a strong connection to the United States under President Donald Trump, emphasising the strategic importance of Canberra’s alliance with Washington in deterring regional threats.

Joyce’s remarks come amid ongoing debates within Australian politics over defence spending, AUKUS and the nation’s strategic posture in the Indo-Pacific, where tensions with China and other regional powers have shaped policy discussions.

Speaking in parliament and to media audiences, Joyce stressed that Australia must maintain its “interoperability” and security partnership with the United States to ensure credible defence capabilities, arguing that without such alignment Canberra would lack both deterrence and strategic clarity.

The MP highlighted that evolving threats, particularly from Beijing’s military expansion, require Australia to remain closely tethered to American defence systems and planning, including cooperation on advanced weapons and technology.

Joyce’s comments also reflect ongoing discussions about AUKUS — the trilateral security pact between Australia, the United Kingdom and the United States designed to enhance regional defence cooperation and deliver nuclear-powered submarines to the Royal Australian Navy.

Supporters of the alliance argue that deep engagement with the United States underpins Australia’s security and complements broader deterrence efforts in the Indo-Pacific.

Critics, however, have called for greater strategic autonomy or diversification of partnerships, cautioning that over-reliance on a single ally could constrain Canberra’s foreign policy options.

Australia’s defence policy debate has intensified as the federal government balances national sovereignty with alliance commitments, including substantial investments in defence capability and coordination with Washington on hypersonic weapons and other cutting-edge systems.

Defence Minister Richard Marles and other officials have underscored that the AUKUS partnership and the U.S. alliance remain central pillars of Canberra’s security strategy, even as policymakers disagree on the precise mix of domestic investment and international cooperation required to safeguard Australia’s interests.

Joyce’s stance resonates with broader political currents emphasising deterrence and alliance strengthening at a time of strategic flux, and underscores the enduring role of the U.S.–Australia relationship in shaping Canberra’s defence outlook.

The debate is expected to continue as Australia formulates its 2026 defence policy against the backdrop of shifting global security dynamics and ongoing engagement with President Trump’s administration.