The Administration's Theory of Military Strength

The administration's theory holds that military power flows from three sources: adequate and growing funding, a culturally disciplined force, and assertive deterrence backed by credible threats of force. The White House has tied its budget requests explicitly to strengthening U.S. safety and sovereignty, deterring Chinese aggression in the Indo-Pacific, and revitalizing the defense industrial base. This is not a departure from prior Republican defense doctrine, but the second term has applied it with greater velocity and more aggressively at the personnel and cultural levels than the first.

The administration's National Security Strategy warns of a "readjustment of our global military presence" that favors addressing hemispheric threats over other theaters, a shift from the Pentagon's March 2025 Interim National Defense Strategic Guidance, which had reportedly linked homeland defense with preventing Chinese military action against Taiwan as the "sole pacing scenario." The resulting strategy is broader and, critics argue, less focused: the Pentagon is simultaneously tasked with Indo-Pacific deterrence, Western Hemisphere dominance, and sustaining a global strike force.

Spending, Readiness, and Force Structure

The spending trajectory of the second term has been steep in ambition but uneven in execution. The FY2026 budget, released in May 2025, included a base defense request of $892.6 billion plus a $119.3 billion allocation from the reconciliation bill, which included $150 billion in additional defense spending over four fiscal years. Senate Armed Services Committee Chairman Roger Wicker argued that the OMB request of $892.6 billion "is a cut in real terms" and warned that the budget "would decrease President Trump's military options and his negotiating leverage." The criticism from within the president's own party illustrated the gap between the administration's rhetorical ambition and its baseline budget request.

By mid-2026, Trump had proposed setting military spending at $1.5 trillion for FY2027, a figure that would represent a 66 percent jump from the $901 billion enacted for FY2026. Preliminary estimates suggested this would increase defense spending by $5 trillion through 2035, adding $5.8 trillion to the national debt when interest is included. The proposal faces significant resistance from deficit-conscious Republicans and near-unanimous Democratic opposition.

On force structure, several experts have noted that the Pentagon's concurrent objectives of achieving denial in the Indo-Pacific, dominance in the Western Hemisphere, and sustaining a global strike force each require very different force structures with their own posture and budgetary trade-offs, and that the National Defense Strategy fails to resolve how these goals will be achieved simultaneously. The domestic deployment of National Guard troops to American cities — including Los Angeles, Washington, D.C., Memphis, and other cities, beginning in June 2025 and continuing into 2026 — has drawn additional scrutiny from those who argue it diverts capacity and training time from warfighting missions.

Alliances, Burden Sharing, and Strategic Commitments

The administration's approach to alliances reflects a transactional logic that has been consistent across both Trump terms: allies must spend more and support American priorities, or face reduced commitment. In practice, the second term has applied this pressure more acutely. Secretary Hegseth's refusal to reaffirm Article 5 of the NATO charter during a period of active crisis introduced conditionality into what was designed to be the alliance's least conditional commitment, and his suggestion that the matter was effectively up to Trump undermined its credibility as a collective guarantee.

Trump then went further by threatening to reconsider America's place in NATO after European governments declined to support his Iran campaign on his terms. The episode illustrated a persistent tension in the administration's approach: it seeks allied contributions while simultaneously treating allied disagreement as disloyalty. Whether this coercive posture produces higher European defense spending — which it may, given the security environment — or fundamentally erodes trust in the alliance structure is a question that remains open. The administration has also articulated what it calls the "Don-roe Doctrine" — an interventionist hemispheric strategy that has included calls to take over Greenland and suggestions of willingness to carry out military operations in other Western Hemisphere nations. These commitments expand the scope of American military responsibility without clear corresponding force structure adjustments.

Technology, Procurement, and the Defense Industry

The signature technology initiative of the second term is the Golden Dome missile defense system. Announced by executive order on January 27, 2025, and later renamed Golden Dome, Trump declared it would cost around $175 billion and be fully operational by the time he leaves office in 2029. However, over a year since its announcement, little progress has been made, with internal misalignment on the system's architecture causing delays; the One Big Beautiful Bill signed in July 2025 included nearly $25 billion in initial funding.

The cost estimates for Golden Dome are sharply contested. The nonpartisan Congressional Budget Office estimated the program could cost $1.2 trillion, while the Pentagon has rejected that figure but refused to share key cost information with CBO or Congress. An independent estimate by AEI senior fellow Todd Harrison placed the potential cost as high as $3.6 trillion. On drones — another declared priority — the Defense Department has committed to "drone dominance," but $1.5 billion in funds for small drone vessels and $2.1 billion for medium drone vessels remained locked pending OMB approval, reflecting a disagreement between OMB and the Pentagon on how to allocate the money. The pattern across major programs suggests that ambition in announcement has not yet translated into disciplined acquisition execution.

Civilian Control, Culture, and Political Influence

Few aspects of the second term have drawn more sustained criticism than the administration's management of the Pentagon's internal culture and leadership. The administration moved quickly after January 2025 to reshape the officer corps and civilian leadership, removing or sidelining officials perceived as insufficiently aligned with the administration's priorities. On January 27, 2025, Trump signed an executive order directing the Pentagon to revise policies concerning gender dysphoria and medical standards, and a companion order titled "Restoring America's Fighting Force" instructed the department to revise training and institutional practices.

The broader cultural agenda has extended well beyond personnel policy. Critics across the political spectrum, including some retired senior officers and Republican members of Congress, have argued that loyalty to the administration's political signals is increasingly weighted alongside professional military qualifications in promotion and assignment decisions. The domestic deployment of military and National Guard forces to cities in support of immigration enforcement and civil unrest suppression has been particularly controversial, given that Congress has historically delegated broad discretion to the president in defense matters, meaning executive orders can rapidly shape personnel standards, readiness policies, and Pentagon governance even without new legislation. That broad authority, in the hands of an administration willing to use it aggressively, has raised concerns about the line between legitimate civilian oversight and politicization of command.

The Test of Deterrence

The administration's ultimate claim is that its approach — higher spending, cultural discipline, and demonstrated willingness to use force — produces stronger deterrence. The evidence to date is mixed. On one hand, the U.S. military operation against Iran beginning in early 2026 demonstrated a real willingness to apply force, and Trump ordered the operation following a months-long military buildup in the region. Whether that constitutes effective deterrence or an expansion of commitments that strains existing forces is genuinely disputed among defense analysts.

On the core Indo-Pacific challenge — deterring Chinese military action against Taiwan — the strategic picture is more ambiguous. The administration has directed resources and rhetorical attention toward the region, but experts have noted that the Pentagon's simultaneous objectives in the Indo-Pacific, the Western Hemisphere, and global strike require very different force structures, and the National Defense Strategy does not resolve how these concurrent goals will be achieved. The Golden Dome program, if it advances, would represent a genuine addition to homeland defense capability, but its operational timeline remains speculative and its costs largely unresolved. What is clear is that the administration has sharply increased both the stated ambitions and the projected costs of American defense policy. Whether the institutions, alliances, and procurement systems now in place can convert that ambition into demonstrated military capability is a test that has not yet been fully administered.

Sources

Reuters, "Trump requests $893 billion for national defense, flat versus 2025" (May 2025)

CBS News, "Trump proposes massive increase in 2027 defense spending to $1.5 trillion" (Jul 2026)

Committee for a Responsible Federal Budget, "$1.5 Trillion Military Budget Would Add $5.8 Trillion to Debt Over Decade" (Mar 2026)

Center for Strategic and International Studies, "Trump Restructures the Pentagon Budget: Two Views" (Apr 2025)

United States Studies Centre, "What's in Trump's new National Defense Strategy?" (Feb 2026)

National Defense Magazine, "Pentagon's Flagship Golden Dome Missile Defense Program Spinning its Wheels" (Apr 2026)

Foreign Policy, "Trump Loves Golden Dome. His Own White House Is Slow-Rolling Spending" (Feb 2026)

Senator Ed Markey press release, "As Trump Requests $1.5 Trillion for Pentagon, Senators Press for Details on Golden Dome" (Jun 2026)

White House, "Fact Sheet: President Donald J. Trump Ensures Military Excellence and Readiness" (Jan 2025)

Modern Diplomacy, "Trump and Hegseth Are Spending NATO's Credibility on a War Allies Will Not Own" (Apr 2026)