90 Day Blackout Plan Prompts Pentagon Bases to Prepare for Grid Loss

The Department of Defense is drafting a strategy that would enable major U.S. military installations to function for up to ninety days without external power or supply lines, a move that has sparked public interest under the search term "90 day blackout." At the same time, the United Kingdom has launched a public campaign urging households to keep essential food, water, and cash ready for short‑term disruptions.

Pentagon orders bases to plan for 90 days without the grid as Britain urges families to stockpile food and water

Under the initiative called FORTRESS (Federal Operations for Resilience, Troop Resources, Energy, Supply, and Survivability), the Pentagon aims for every major continental base to generate its own electricity, water, fuel, and communications for a minimum of ninety days. The blueprint calls for portable nuclear reactors, large battery banks and micro‑grids that can detach from civilian utilities. The Army has already earmarked up to $2.2 billion for nuclear micro‑reactor projects at sites such as Fort Bragg and Fort Hood. The plan also includes stockpiling munitions, spare parts and medical supplies, and mapping commercial factories that could pivot to defense production if needed.

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Although no specific adversary has been named, the documents reference concerns about cyber‑enabled attacks on critical infrastructure. A February 2024 advisory warned that a Chinese hacking group, Volt Typhoon, had infiltrated networks in the energy, water, transportation and communications sectors, potentially positioning itself to disrupt services during a conflict. Consequently, FORTRESS requires at least two independent supply pathways for each critical item, reducing the risk that a single factory failure would cripple operations. Cost estimates range from tens to hundreds of billions of dollars, and officials acknowledge that achieving full compliance across roughly 500 bases could take decades.

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In a recent statement, the Pentagon’s assistant secretary emphasized the urgency of building resilient infrastructure, describing it as a national imperative. The message aligns with broader government efforts, such as Britain’s “Be Ready” campaign launched on October 22, which advises citizens to store three liters of water per person per day, non‑perishable food, flashlights, power banks, a battery‑powered radio and cash for pets. The British defence secretary also warned that hostile states could field a war economy capable of striking by 2030, underscoring the parallel focus on preparedness on both sides of the Atlantic.

What comes next for the 90 day blackout strategy?

Senior defense officials say the Pentagon is still assessing resource needs and has not released a final timeline or budget. Ongoing coordination with the Civil Reserve Manufacturing Network will map commercial partners that could support defense production in a crisis. Meanwhile, public awareness of the "90 day blackout" concept is growing, as reflected by recent search spikes. For further context on how governments are preparing for large‑scale disruptions, see Local Officials Brace for Disruptions as Voting Day 2026 Arrives.

Sources: Fortune, Fox News, U.S. Department of War (.gov).