In A Unified Command, Members Representing Multiple Jurisdictions And Agencies Work Together To Establish What?

In a unified command, members representing multiple jurisdictions and agencies work together to establish jointly approved incident objectives.

This ensures a coordinated and collaborative response that leverages the strengths and resources of each entity involved – according to the official FEMA ICS 100 course material

Source: https://training.fema.gov/is/courseoverview.aspx?code=IS-100.c&lang=en