Inside the Pentagon's doomsday plan to keep America fighting if global war erupts

FIRST ON FOX — The Pentagon is preparing U.S. military bases to keep operating for at least 90 days without outside support as it prepares for the possibility of a major war that could cripple power grids, disrupt supply chains and threaten critical infrastructure on American soil.

The new requirement is part of FORTRESS, a broader military initiative aimed at ensuring American forces can continue fighting even if the civilian systems they depend on are disrupted, according to documents reviewed by Fox News Digital.