Bridging the Gap: Why DHS Needs a Coherent National Security Strategy

As the U.S. Department of Homeland Security (DHS) becomes central to national security strategy, its institutional framework lags behind evolving threats, creating a critical gap in operational coherence. The 2025 National Security Strategy and Counterterrorism Strategy reposition homeland security as a core mission, but without a unified Quadrennial Homeland Security Review (QHSR), DHS remains fragmented. This disconnect risks undermining efforts to counter transnational threats, from cyberattacks to domestic extremism, as highlighted in the Department’s 2023-2027 Strategic Plan.

The Strategic Vacuum in Homeland Security

The U.S. Department of Homeland Security, established in 2002, was designed to address post-9/11 vulnerabilities. However, its strategic architecture has not kept pace with the convergence of foreign and domestic threats. The 2025 National Security Strategy (NSS) explicitly ties homeland security to national defense, recognizing fentanyl trafficking as a weapon of mass destruction and cartel activity as a national security threat. Yet, as the DHS Strategic Plan states, the department lacks a “strategic lodestar” to align its components—Customs and Border Protection (CBP), the Coast Guard, FEMA, and the Transportation Security Administration (TSA)—around a unified vision.

This gap is exacerbated by institutional inertia. The first Trump administration skipped the Quadrennial Homeland Security Review (QHSR), and the Biden administration’s 2023 review fell short of statutory requirements, according to the Government Accountability Office (GAO). “The QHSR is not a bureaucratic checkbox—it’s the foundation for prioritizing resources and operations,” said a DHS official, speaking on condition of anonymity. “Without it, components default to siloed priorities, not department-wide goals.”

Operational Consequences of Strategic Disarray

The 76-day DHS shutdown in early 2026—longer than any in U.S. History—exposed the risks of a fragmented strategy. While funding disputes centered on immigration enforcement, the shutdown crippled critical functions: TSA officers went unpaid, FEMA’s disaster preparedness stalled, and Coast Guard operations faced resource shortages. “When funding is tied to political battles rather than strategic needs, the entire enterprise suffers,” noted Rep. Bennie Thompson (D-MS), chair of the House Committee on Homeland Security. “This isn’t just about budgets—it’s about accountability.”

The fallout persists. Components like the Cybersecurity and Infrastructure Security Agency (CISA) report delayed upgrades to critical infrastructure defenses, while CBP struggles to manage a border increasingly shaped by transnational criminal networks. The FY2026 National Defense Authorization Act (NDAA) extended DHS’s counter-Unmanned Aircraft Systems (UAS) authorities through 2031, but implementation remains uneven. “Counter-UAS operations require coordination across agencies, yet there’s no centralized doctrine,” said Dr. Laura Edelman, a homeland security analyst at the RAND Corporation. “This is a $1.2 billion investment without a roadmap.”

Geo-Local Impacts: From Borders to Urban Centers

The strategic vacuum has tangible effects on local infrastructure and municipal governance. At the U.S.-Mexico border, CBP’s reliance on short-term funding has led to inconsistent enforcement, while California’s Department of Health Care Services (DHCS) faces strain from surges in migrant health crises. “Our hospitals are overwhelmed, but federal priorities remain siloed,” said Dr. Maria Guzmán, director of the Los Angeles County Department of Public Health. “We need a strategy that links border security to public health outcomes.”

In urban centers hosting major events, such as the 2028 Los Angeles Olympics, the lack of a unified counter-UAS framework raises safety concerns. Local law enforcement agencies, already stretched thin, face pressure to deploy untested technologies without clear federal guidance. “We’re being asked to protect the public with tools we don’t fully understand,” said Los Angeles Police Department Chief Michel Moore. “This isn’t just a federal problem—it’s a local emergency.”

The Case for a Goldwater-Nichols Moment

Experts argue that DHS requires a “Goldwater-Nichols-style” restructuring, akin to the 1986 defense reform that unified military command. “The QHSR isn’t just a document—it’s a mechanism to force interagency coordination and resource alignment,” said former DHS Secretary Jeh Johnson. “Without it, we’ll keep reacting to crises instead of anticipating them.”

Congress has the power to act. The National Defense Strategy (NDS) benefits from an independent commission to audit its assumptions, a model that could be replicated for the QHSR. “The NDS has teeth because it’s tied to defense budgets. The QHSR needs the same rigor,” said Rep. John Carter (R-TX). “Otherwise, DHS