Search “PEOC” and itshould come up easily.
Yeah...that's the word I was looking for the PEOC
Presidential Emergency Operations Center - Wikipedia https://en.wikipedia.org/wiki/Presidential_Emergency_Operations_Center
The Presidential Emergency Operations Center (PEOC) is a bunker-like structure that lies underground, beneath the East Wing of the White House and serves as a secure shelter and communications center for the President of the United States and other protectees in case of an emergency.