The level was raised from “Alpha” — with some elements of “Bravo” — to “Bravo,” said Pentagon spokesman Army Col. Steve Warren. “Alpha” is a “steady state,” he said.
He said that meant “awareness” and “additional personnel providing security in some circumstances.”
The heightened level of security at bases would not be noticeable for most Americans, except for longer lines when entering military posts, camps and stations in specific areas, he said.
It was also a reminder to military commanders in the U.S. to ensure “increased vigilance in safeguarding of all DOD personnel, installations, and facilities,” Warren said.
via Pentagon raises threat level at US military bases | TheHill.