The National Interest, Narrowed

Trump’s 2025 National Security Strategy codifies a more limited, transactional vision of U.S. power.

This Brisk Assessment was adapted from GSPP’s December 2025 5 Questions: What Trump’s 2025 National Security Strategy Reveals About the Future of U.S. Foreign Policy – Five Questions with Professor Andrew W. Reddie, interviewed by GSPP’s Vanessa Martini.

The Trump Administration’s long-awaited 2025 National Security Strategy (NSS) presents itself as a decisive break from past approaches to U.S. foreign policy. In practice, however, the document largely codifies what the administration has already been doing since returning to office. Its core themes—skepticism toward expansive global engagement, a narrow conception of the national interest, and a heavy emphasis on border security, hemispheric threats, and domestic economic strength—are consistent with the administration’s long-standing worldview.

Although the NSS adopts sharper language about correcting decades of American overreach, many of its stated priorities reflect the foreign policy activities of the administration, including the rollback of foreign assistance programs and increased pressure on allies to assume greater responsibility for their own defense. The relatively low-key rollout of the document, combined with its ideological framing, suggests that the NSS functions less as a blueprint for new policy and more as a declaratory effort to formalize this administration’s long-standing instincts without the bureaucratic constraints that traditionally shape such documents. 

A defining feature of the 2025 NSS is its insistence on a tightly circumscribed definition of the national interest. Unlike previous strategies that treated alliances, human rights, and global public goods as central to U.S. security, the document restricts U.S. engagement to issues that directly threaten American safety or prosperity. As a result, long-term investments in democratic resilience, climate cooperation, global health, and nonproliferation are implicitly deprioritized. While this approach may align with short-term domestic political priorities, it risks undercutting U.S. influence and leaving the United States less prepared to manage slow-moving global challenges.

The strategy also marks a clear geographic shift, elevating the Western Hemisphere as the primary focus of U.S. national security policy. Reflecting a renewed Monroe-style outlook (the Trump corollary), the NSS frames migration, narcotics trafficking, and foreign influence in the region as more pressing than challenges in more distant theaters. At the same time, the document deemphasizes sustained engagement in the Middle East and downplays global counterterrorism as an organizing principle of U.S. strategy. This hemispheric turn, while aligned with the administration’s political agenda, raises concerns about the potential creation of strategic vacuums in Europe, the Indo-Pacific, and the Middle East.

The NSS further reframes alliances and partnerships in transactional terms. Rather than treating allies as force multipliers or sources of strategic legitimacy, the document emphasizes sovereignty, burden redistribution, and cost. Partnerships are portrayed as conditional and instrumental, valuable primarily insofar as they serve immediate U.S. interests. This framing raises questions about the durability of longstanding security arrangements and the credibility of U.S. leadership at a time when collective action remains central to managing great-power competition, deterring aggression in multiple theaters, and managing global crises.

Finally, the strategy places economic, technological, and industrial “dominance” at the center of U.S. national security, arguing that domestic strength underpins global power. Yet this ambition sits uneasily alongside limited attention to the long-term investments (such as infrastructure, workforce development, research capacity, and modernized regulatory frameworks) needed to sustain competitiveness. Without these foundations, the document’s economic vision risks becoming aspirational rather than actionable.

Taken together, the 2025 NSS reveals less about a new strategic direction and more about the degree to which the traditional bureaucratic constraints around national security policymaking have eroded. The document’s narrow definition of national interest, its hemispheric focus, and its transactional view of alliances all reflect the administration’s preferred foreign policy approach—now articulated with fewer institutional brakes. It is a clearer, more explicit statement of what the administration has already been doing: centralizing authority, prioritizing near-term domestic concerns, and reducing America’s global commitments. The result is a strategy that marks a rhetorical break with decades of U.S. doctrine while largely reaffirming the administration’s ongoing course.