Pentagon Plans to Keep US Military Bases Running for 90 Days Without Outside Support

The Pentagon is preparing a new defence initiative aimed at ensuring that major US military bases can continue operating for up to 90 days without external support, amid growing concerns over potential wars, infrastructure disruptions and supply chain vulnerabilities. The initiative, reportedly known as FORTRESS, focuses on strengthening the ability of military installations to function during prolonged emergencies, including situations in which electricity, water, fuel and other essential services become unavailable.

According to recent reports, the plan seeks to reduce the US military's dependence on civilian infrastructure and ensure that critical defence operations can continue even if the country faces a major security crisis. A key component of the initiative is improving energy independence at military installations. Proposed measures include microgrids, battery storage systems and portable nuclear reactors that could provide reliable electricity during disruptions to the civilian power network.

Military bases rely on continuous power for communications, surveillance, command systems and logistical operations. A prolonged blackout could therefore affect operational readiness if backup arrangements are insufficient. The Pentagon's plan also emphasises the need to strengthen supply chains and maintain reserves of essential materials. Disruptions to transportation networks, manufacturing facilities or international shipping routes could affect the availability of fuel, spare parts, medical supplies and military equipment during a conflict. To reduce these risks, the initiative reportedly includes efforts to identify alternative suppliers and expand domestic manufacturing capabilities. The Civil Reserve Manufacturing Network is expected to play a role in preparing commercial factories to support defence production during emergencies.

Under such arrangements, selected civilian facilities could be prepared to manufacture or supply critical military components if existing production networks came under pressure. Advance planning could help reduce delays in obtaining equipment and replacement parts during a prolonged crisis. The initiative also highlights the importance of protecting communications and space-based capabilities. Military operations increasingly depend on satellites, digital networks and navigation systems, all of which could face cyberattacks or electronic interference during a major conflict.

The reported preparations come as defence planners increasingly consider threats that extend beyond conventional warfare. Cyber operations, attacks on critical infrastructure and disruptions to global supply chains could affect military readiness even without a direct attack on a military installation. The 90-day preparedness target does not necessarily indicate that the Pentagon expects a war to begin imminently. Defence agencies routinely develop contingency plans to prepare for a range of possible emergencies.

The effectiveness of the initiative will depend on funding, infrastructure upgrades, coordination with private-sector suppliers and regular testing of emergency arrangements. If implemented successfully, the plan could strengthen the ability of US military installations to maintain essential operations during extended disruptions. It also reflects a broader shift in defence planning, in which energy security, industrial capacity and resilient supply chains are increasingly viewed as essential elements of national security.

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