The primary objective of Biden’s integrated deterrence strategy was to harmonize and unify the efforts of various government agencies and allied nations to deter aggression from China and other hostile actors. To achieve this objective, the strategy aimed to maximise the utilisation of all available tools of American power, encompassing diplomacy, intelligence, economic assistance, and force posture decisions. Integration with allies and partners was an integral component of Biden’s deterrence strategy and would be achieved by enhancing the interoperability of allied military forces and coordinating the diplomatic and economic initiatives of friendly nations.

While the goals of integrated deterrence appear sensible, many expressed concerns about the concept. Some claimed the term was not new or unique. It simply described the implementation of any effective, tailored deterrence strategy that leverage various organisations to prevent hostile actions.

American deterrence was executed in an integrated fashion throughout the Cold War by necessity, thanks to the size and significance of the Soviet threat. Concerns were also expressed that proponents of integrated deterrence overstated the ability of sanctions, diplomacy, and other non-military tools to prevent conflict. History shows that the threat of major military action has a unique strength in deterring an enemy, especially when that threat comes from a nation with a nuclear arsenal.

Regardless of one’s stance on integrated deterrence and its implementation, a coordinated US strategy that leverages the strengths of its allies should be preferred to the alternative currently being pursued in Washington. A lack of integration in deterrence matters is evident both within the US government and in its interactions with partners and allies.

Within the United States government, there are several reported disconnects between President Trump and senior members of his administration. For example, Secretary of State Marco Rubio was first informed of Trump’s proposal to take Gaza by military force and evict Palestinians while watching a press conference held by Trump and Israeli Prime Minister Benjamin Netanyahu. Furthermore, it was recently reported that Rubio is “privately frustrated that Trump has effectively sidelined him.” More recently, Signal messages disclosed highlight significant differences between Vice President Vance and President Trump on the timing and signaling associated with strikes on Houthi targets.

This lack of vertical integration diminishes the authority that the secretary holds in meetings with both allies and adversaries. Additionally, it eliminates the potential for any exchange of ideas that could transpire within the Department of State to develop more effective policy options to present to the president.

Horizontal integration of deterrence across various departments was also weakened, partially by budgetary cuts and eliminations of entire organizations. Foreign assistance and development resources were pivotal components of the 2022 Indo-Pacific Strategy. However, extensive cuts made to the United States Agency for International Development and other government agencies by the Department of Government Efficiency did not fully consider or comprehend the regional implications or potential negative impacts on deterrence.

To date, much of Trump’s foreign policy is focused on addressing conflicts in Europe and the Middle East. A strategy for dealing with China, beyond the use of tariffs and other economic measures, is yet to be revealed. There are lessons to be learned from what has transpired with allies facing a menacing Russian threat in Europe.

President Trump consistently urges the North Atlantic Treaty Organization’s (NATO) member-states to significantly enhance their defence expenditures, even suggesting that 5 percent of their gross domestic product (GDP) may be an appropriate threshold. For those nations that fail to meet NATO’s spending guidelines, Trump stated that US military support under Article 5 may not be available. While NATO nations were increasing defense spending prior to Trump taking office (a 20 percent increase in 2024), Germany and the United Kingdom (UK) recently announced plans to further bolster defense budgets.

While additional insights into Trump’s approach to allies in the Indo-Pacific are anticipated in the coming weeks and months, Australia should draw upon several valuable early lessons. The first pertains to the long-standing Canberra tradition of analyzing and dissecting the statements and writings of senior officials within an American administration to comprehend policy. Maintaining cordial relations with officials at all levels of the US government remains prudent, but it is uncertain whether statements from senior administration officials can be relied upon to fully reflect Trump’s perspectives.

Furthermore, the current level of Australian defense spending, which accounts for 2 percent of GDP, will not meet Trump’s expectations for allies. A pre-emptive move to increase defense spending to 2.5 percent of GDP by 2027, similar to what was announced in February by the UK, would demonstrate Australia’s national commitment to addressing its deteriorating strategic circumstances and to contributing more towards its share of the alliance. If President Trump has made one thing clear to allies, it is that if they do not value their own defense neither will he.

Carl Rhodes is founder of Robust Policy and a senior fellow with the National Institute for Deterrence Studies. Carl hosts the Deterrence Down Under podcast and previously spent 25 years with RAND Corporation. Carl has a PhD in chemical engineering from Caltech.

Trump’s Disintegrated Deterrence and Lessons for Australia was originally published on Global Security Review.

The book is fast-paced and covers Nitze’s career in and around government in just 268 pages. James Graham Wilson, an historian at the US State Department, draws on voluminous archived notes of White House meetings and State Department documents to build his description of Nitze’s influence. This allowed the author to clearly and confidently identify what and how Nitze’s ideas were injected into treaties and American policy. Wilson also does not shy away from criticizing Nitze’s policy or personal shortcomings where warranted. This makes for a complete yet consumable treatment of Paul Nitze’s work.

Whether working in the Department of State or Defense, where Nitze served, aspiring national security professionals should be reading this book. Following Paul Nitze’s career path might be impossible today, but tracing it offers many useful insights.

Nitze made a personal fortune investing during the volatile years of the market crash and depression. He married into political connections and with his comfort secured, could have lived a life of leisure, but chose a life “in the arena” instead. Nitze first applied his exceptional analytical skills to a pressing national security issue—assessing the value of strategic bombing in World War II. It was here, with the US Strategic Bombing Survey, that the Nitze way came to prominence. As Wilson tells it, this “way” is to find the facts, use them to craft executable plans for securing American “predominance,” and then fight aggressively but patiently to get that plan implemented.

The Bombing Survey demonstrated that strategic bombing did not achieve the goals its advocates claimed, earning Nitze no friends in the Pentagon. His analytical accuracy, candor in presentation, and independence of thought earned him the respect of President Truman, Eisenhower, and most presidents that followed.

Paul Nitze has a particular policy related to nuclear weapons. His influence did not depend on his holding a position in government but transcended political partisanship. He saw himself as a “man of action” who fused his mathematical mind with the social sciences and balanced theory with his practical experiences to provide realistic policy. Wilson’s Nitze changed his views rarely and did not shy away from bullying when the tactic appeared useful.

Nitze’s laser focus on America first policies put the country on the path for peace through strength well before those were popular slogans. His loyalty to national interest over personal gain was showcased in a scathing op-ed he helped write that attempted to scuttle the Strategic Arms Limitation Treaty, once he came to see it as counter-productive to defense.

United States Objectives and Programs for National Security (NSC-68) was Paul Nitze’s first, and perhaps most important policy document. Wilson dedicates a chapter to this product, but it permeates the entire book. Wilson shows how this document was so much more than simply a plan to deal with Soviet nuclear weapons. It was close in impact to Kennan’s Long Telegram. While sensitive to the value of public debate on defense policy, Wilson demonstrates that Paul Nitze was self-conscious about publishing. However, Wilson credits Nitze with an impressive writing feat in NSC-68, functionally creating the first national security strategy. This document certainly echoes across the decades from its initial presentation to Truman in 1950 well past the Cold War.

Later in his career, Nitze led President Ronald Reagan’s negotiation team for the anti-ballistic missile and intermediate nuclear forces treaties. Nitze consistently pushed for a strong US nuclear posture to enable effective negotiations. This is reflected in deterrence theory today in books like Matt Kroenig’s The Logic of American Nuclear Strategy: Why Strategic Superiority Matters.

Advocacy for high defense budgets did not restrict Nitze from calling for complete nuclear disarmament later in life. He believed that the 1991 Gulf War showed that this could be achieved because of the strategic effects of precision-guided weapons and what the Biden administration calls integrated deterrence.

Some of today’s up and coming defense policy and strategy practitioners may have a hard time relating to Paul Nitze’s privileged upbringing or his self-made independent wealth. Wilson’s assertion that it is unlikely that anyone today could move back and forth across the political aisle like Nitze did is probably true. But there are many useful nuggets of Nitze wisdom and experience in this book that are useful for new and well-practiced policymakers. Wilson’s Nitze is a persistent yet practical advisor at the nexus of defense and diplomacy whose work covered most of the last century but whose impact will likely reach into the next. Paul Nitze’s professional life is worth your time and this book is a great introduction to his work.

James McCue is a retired USAF aviator and nuclear security professional. He is an expert on nuclear strategy and national defense policy. He is a fellow with the National Institute for Deterrence Studies and Associate Editor for Global Security Review. Views expressed in this article are the author’s own.

Reflections on America’s Cold Warrior was originally published on Global Security Review.