Some Army installations could be powered by nuclear microreactors under an executive order recently issued by President Donald Trump.

The order, published May 23, calls for deploying advanced nuclear reactor technologies for national security and directs Army Secretary Daniel Driscoll to establish a program using the technology for both installation and operational energy.

It orders the operation of a nuclear reactor at a domestic military base or installation by Sept. 30, 2028.

“Advanced nuclear reactors include nuclear energy systems like Generation III+ reactors, small modular reactors, microreactors, and stationary and mobile reactors that have the potential to deliver resilient, secure, and reliable power to critical defense facilities and other mission capability resources,” according to the order.