A panel of experts unpacked Japan’s National Security Strategy and explored the opportunities and challenges for Australia-Japan-US trilateral strategic cooperation under Trump 2.0. The panel featured two prominent strategic thinkers from the US and Japan.

Few countries have done more to reorganise themselves for a new era of strategic competition in the Indo-Pacific than Japan. Building on the strategic vision of former Prime Minister Shinzo Abe, Japan’s 2022 National Security Strategy, National Defense Strategy, and Defense Build-Up Plan provided a new framework for Japan to assume a more active and assertive role in regional security affairs. Since then, successive Japanese leaders have introduced new pieces of legislation, strengthened key national security institutions, increased national defence spending, and expanded Japan’s defence partnerships with the United States and Australia, including trilaterally, to address an increasingly volatile regional and global security environment.

The logic of such cooperation remains sound even with the second coming of Donald Trump. Yet even trusted US allies like Japan and Australia are facing difficulties and uncertainty in their relationships with Washington. The threat of tariffs, demands for increased defence spending, reviews of marquee initiatives like AUKUS, and the dismantling of key US national security and diplomatic agencies all pose challenges to Australia, Japan and trilateral cooperation.

How have Japan’s security policies developed in recent years? What more must be done to fully implement those changes? How are Australia and Japan navigating their relationships with Trump 2.0? Where is the trilateral defence partnership headed?

To discuss these questions, USSC hosted a panel discussion featuring Yuki Tatsumi, Senior Director at the Institute for Indo-Pacific Security; Hirohito Ogi, Senior Research Fellow with the Institute of Geoeconomics at the International House of Japan, and Tom Corben, Research Fellow in the Foreign Policy and Defence Program at the USSC, moderated by USSC Professor and CEO Dr Michael Green.

This event was part of the United States Studies Centre’s Assessing Implementation of Abe’s National Security Strategy supported by the Smith Richardson Foundation.

Three years since Russia’s invasion of Ukraine, the second Trump administration has made sweeping changes to US foreign policy priorities and moved to limit US support for Ukraine. In the last six months, the world has seen an explosive Oval Office meeting between President Trump and President Zelenskyy, NATO states pledging to increase their defence spending to as much as 5% of GDP, and continued Russian attacks on Ukraine. With future US support for Ukraine appearing to be uncertain, key questions about Ukraine’s future arise:

• Beyond budget pledges, how will European states respond to US demands for them to step up their defence contributions to Ukraine?
• What role should Australia play in the ongoing conflict?
• What will the second Trump administration mean for Ukraine’s future?

To discuss these questions, the USSC hosted a panel discussion featuring USSC Senior Lecturer Dr Gorana Grgić, University of Sydney Senior Lecturer Dr Olga Boichak, and Griffith Asia Institute Associate Professor (Adjunct) Dr Matthew Sussex, moderated by USSC Director of Research Jared Mondschein.

The event began with a virtual address by Ukrainian Ambassador to Australia His Excellency Vasyl Myroshnychenko.

The transition to a new US Administration has sharpened Washington’s focus on the Indo-Pacific, while also exposing deep strategic and political tensions shaping the future of American foreign and defence policy.

Competing pressures — between isolationism and interventionism, reassurance and burden-sharing with allies, and fiscal restraint versus demands for force modernisation and advanced capabilities like ‘Golden Dome’ — are creating uncertainty around how the US will deter what Secretary of Defense Pete Hegseth has called China’s “imminent threat” to Taiwan.

These tensions raise urgent questions: How has (and hasn’t) the US approach to deterrence in the Indo-Pacific changed under the new Administration? Are US forces adequately postured to support US regional interests and alliance commitments? Where are the major fault lines in US regional strategy, and what do they mean for the future of regional security and US influence in the Indo-Pacific?

To unpack these issues, the United States Studies Centre hosted a fireside chat with Kelly Magsamen, former Chief of Staff to Secretary of Defense Lloyd Austin and Senior Advisor at The Asia Group. The conversation was moderated by Professor Peter Dean, Director of Foreign Policy and Defence at the United States Studies Centre.

This event is part of the United States Studies Centre's ‘Next Generation Leaders in the Australia-US Alliance’ project which is supported by funding from the US State Department.