Pentagon Drafts FORTRESS Plan for 90-Day Base Autonomy

Pentagon spokesperson Sean Parnell characterized reliance on municipal services as an intolerable risk, noting that modern combat capability is inextricably linked to energy availability. Without a stable power supply, military communication, water treatment, and base logistics effectively collapse. To mitigate this, the military is investing in microgrids—localized networks capable of islanding from the national grid—alongside large-scale battery storage and portable nuclear reactors.

Beyond energy, the initiative mandates that installations secure their own fuel and supply lines for a 90-day window. The strategy also encompasses plans to rapidly transition civilian manufacturing capacity to defense production, ensuring equipment output remains constant even if global supply chains are severed. By shifting away from the assumption that geographic isolation provides inherent security, the Department of Defense intends to establish an operational baseline that survives the initial shocks of a large-scale emergency rather than reacting mid-crisis.