The U.S. Department of War is pursuing a new approach to military installation infrastructure, with plans for a prototype base capable of operating independently of civilian utilities for 30 days. The concept combines energy independence, secure communications, water resilience and improved facilities for military personnel.
- Why the Pentagon Is Rethinking Base Infrastructure
- Fortress America: A Broader Approach to Installation Security
- What the Next Great American Base Would Include
- Why Microgrids and Nuclear Power Matter
- Secure Networks and Water Independence
- Personnel Facilities Are Part of Readiness
- The Main Test Will Be Implementation
Dale Marks, assistant secretary of war for energy, installations and environment, outlined the initiatives at an Association of Defense Communities convention in Tampa, Florida, according to a report published by the department on October 29, 2026. The plans include two related efforts: Fortress America, a broader resilience initiative, and the Next Great American Base, a prototype intended to demonstrate how future installations could operate under disrupted conditions.
The proposals address a vulnerability that conventional military construction does not necessarily resolve. An installation can have aircraft shelters, command centers and weapons storage facilities yet remain dependent on external electricity, municipal water, commercial communications and long supply chains.
The proposed changes are intended to reduce that dependence. However, the publicly reported details describe a planned capability, not a completed base or a demonstrated ability to withstand every form of attack.
Why the Pentagon Is Rethinking Base Infrastructure
Military installations depend on interconnected civilian and military infrastructure. Electricity supports command networks, radar systems, maintenance facilities, fuel distribution and accommodation. Water is essential for personnel, medical services, firefighting and industrial activities.
Disruptions to these services can affect operational readiness even when an adversary has not directly attacked military equipment.
Cyber operations, physical sabotage and attacks on energy infrastructure can create problems that extend beyond the perimeter of a military installation. Long-range precision weapons and one-way attack drones also complicate the assumption that facilities located far from an active battlefield are automatically secure.
Marks identified vulnerabilities involving energy, water and communications networks, alongside the challenge of keeping pace with adversaries that can update software and autonomous systems faster than traditional defense acquisition processes, according to the department’s report.
The proposed infrastructure changes would address these risks through a combination of physical protection, independent utilities, supply chain resilience and secure digital systems.
The distinction is important. Base resilience is not simply a construction issue. It also depends on how installations generate and distribute electricity, maintain communications, store critical supplies and restore services after disruption.
Fortress America: A Broader Approach to Installation Security
Fortress America is intended to bring several areas of infrastructure protection under a common resilience strategy. According to the department’s reporting, its main priorities include five areas:
- Energy independence: Increasing the ability of installations to generate and manage their own power.
- Domestic supply chains: Reducing exposure to disruptions affecting critical materials and supplies.
- Physical and cyber protection: Hardening installations and protecting their digital infrastructure.
- Strategic reserves: Maintaining access to essential resources during prolonged disruptions.
- Space and spectrum resilience: Protecting capabilities that depend on space-based services and the electromagnetic spectrum.
These priorities extend beyond individual buildings or backup generators. They address the systems that allow installations to sustain military operations when external infrastructure becomes unavailable.
The approach also reflects an existing military requirement. U.S. forces need reliable power, communications and water to support command and control, maintenance, mobilization and deployment. Improving these services can help preserve readiness during emergencies without requiring every installation to become completely independent of civilian infrastructure.
What the Next Great American Base Would Include
The proposed Next Great American Base would serve as a prototype for testing infrastructure designed to operate with fewer external dependencies.
According to the reported plans, the concept includes:
| Infrastructure | Intended function |
|---|---|
| Electrical microgrids | Maintain power when disconnected from the civilian grid |
| Small nuclear reactor | Provide an on-site power source |
| Air-gapped networks | Isolate selected computer systems from external networks |
| Closed-loop water systems | Reuse water and reduce dependence on outside supplies |
| Hardened facilities | Improve protection against physical and cyber threats |
| Improved accommodation | Support personnel welfare, morale and retention |
The department’s reported concept calls for the installation to operate independently of civilian utilities for up to 30 days. That is a stated design objective, not a publicly demonstrated performance result.
The available reporting does not establish the proposed reactor’s design, electrical output, licensing arrangements, construction schedule or cost. It also does not specify how much power the installation would require during a prolonged emergency or how the water system would meet every operational demand.
Those details will matter when assessing whether the concept can move from an ambitious design into a practical military installation.
Why Microgrids and Nuclear Power Matter
An electrical microgrid can connect local generation, energy storage and distribution equipment so that selected facilities continue receiving power when the wider grid fails. Depending on its design, a microgrid can disconnect from the external network and operate independently.
This capability is relevant to military installations because losing electricity can interrupt multiple functions simultaneously, including communications, equipment maintenance, security systems and essential services.
The U.S. military has already pursued installation energy resilience through existing programs. In congressional testimony concerning fiscal year 2025 funding, the department described investments in microgrids, backup generation, energy storage and other technologies intended to protect critical missions from power disruptions. The Energy Resilience and Conservation Investment Program supports such work.
A small nuclear reactor could provide a continuous source of electricity without relying on regular fuel deliveries in the same way as a conventional diesel generator. However, nuclear power introduces its own requirements, including regulatory approval, specialized personnel, maintenance, security and spent-fuel management.
Microgrids also do not guarantee uninterrupted power. Their performance depends on available generation capacity, equipment reliability, system controls and the ability to repair damaged components.
The value of the proposed base will therefore depend on how these technologies work together under realistic operating conditions, rather than on the presence of any single system.
Secure Networks and Water Independence
The prototype’s reported use of air-gapped networks addresses another potential vulnerability: dependence on external digital connections.
An air-gapped system is physically or logically separated from other networks to reduce exposure to remote intrusion. Such separation can improve security for selected systems, but it does not eliminate every cyber risk. Removable media, compromised equipment, insider threats and maintenance procedures can still create vulnerabilities.
The challenge is to preserve security while allowing the systems responsible for running an installation to exchange the information they need.
Water presents a different problem. Military bases require reliable supplies for drinking, sanitation, medical care, firefighting and technical activities. Closed-loop systems can recover and reuse water, reducing the volume that must be obtained from external sources.
Yet water independence requires more than recycling equipment. An installation must also account for treatment capacity, storage, contamination, equipment failures and changes in demand.
The reported 30-day objective will be meaningful only if the department defines which services must remain operational during that period and demonstrates that the infrastructure can support them.
Personnel Facilities Are Part of Readiness
The initiative also includes plans to improve the living environment for service members and their families.
Marks reportedly identified poor housing conditions, including mold, leaking roofs and failing plumbing, as concerns affecting military communities. The proposed base concept would incorporate more convenient layouts, improved schools, health care and community facilities.
These measures are not separate from military readiness. Housing conditions and access to essential services can affect morale, family stability and the decision to remain in military service.
However, the effectiveness of new accommodation will depend on construction quality, maintenance budgets, service availability and long-term operating costs. A well-designed installation can still experience deteriorating facilities if maintenance is deferred or funding is insufficient.
The proposal therefore combines two objectives: maintaining operational infrastructure during disruption and improving the conditions in which military personnel live and work.
The Main Test Will Be Implementation
The central question is whether the proposed design can deliver measurable improvements at a manageable cost.
A prototype could help the department test the integration of power generation, water systems, communications security and physical protection before applying selected features to existing installations. That approach could also identify technical problems before they are repeated across a wider construction program.
The financial challenge is substantial in principle, even though no verified cost estimate for the proposed prototype was identified in the available reporting. Independent power generation, specialized water treatment, hardened facilities and secure networks all require initial investment and continuing maintenance.
There is also a difference between designing a base for independence and proving that it can sustain its mission during a real emergency. A meaningful evaluation would need to examine equipment failures, supply interruptions, cyber incidents and the ability to restore services without outside assistance.
The department’s reported plan is to use the prototype’s systems to inform improvements at existing installations. The available information does not establish a rollout schedule, identify a construction site or confirm that funding has been approved for a completed base.
For now, Fortress America and the Next Great American Base are best understood as infrastructure resilience initiatives with potentially important implications for military readiness. Their practical value will depend on the engineering, funding and testing that follow the announcement.
