Something is coming: The Pentagon is preparing all major US military bases for 90 days of battery life without fuel, water or any supplies, Fox News reported. We are preparing for the event of a major war that will disrupt the supply chain and disrupt the electricity network in the country. In the US, the bases will use portable nuclear reactors and large batteries that can be completely disconnected from the civilian power grid. It also provides an option for the transfer of civilian factories to military production.