So I typed Unified Chain of Command into DuckDuckGo.

"The ICS command structure provides an orderly chain of command that is consistent across responding organizations. This chain of command may have either a single person, the Incident Commander (IC), at its head, or a multi-agency team, which is referred to as Unified Command. All other elements of the command structure are the same, regardless of how it is commanded."

https://www.aspcapro.org/resource/understanding-nims-and-ics

The fact that this was said on video for us to hear may have been a quiet nod to prepare yourselves for what is to come.