The Pentagon is preparing US military bases to meet a reported 90-day self-sufficiency requirement as it strengthens power supplies and supply chains against prolonged disruption.
Under FORTRESS America, announced by US Secretary of War Pete Hegseth on 30 September 2026, every major military installation in the United States is intended to generate power independently of the civilian grid. Internal Pentagon documents reviewed by Fox News Digital describe a requirement for major installations in the continental United States to sustain essential operations independently for at least 90 days.
