The U.S. Air Force is planning to put its nuclear bombers on 24-hour alert for the first time since the Cold War.
Newsweek says the order hasn't been given yet, but Air Force Chief of Staff David Goldfein thinks it could be.
He cites the current tensions with North Korea.
President George H.W. Bush ended the 24-hour alert in 1991 at the end of the Cold War.
Also, on Friday, President Trump signed an executive order that would bring 1,000 Air Force pilots out of retirement if need be.
One expert notes it's a costly practice to keep the bombers on standby all the time.