In a military context, an assembly call refers to a designated signal or command used to gather troops or personnel in a specific location for formation or briefing. It is a means of quickly and efficiently assembling a group of individuals for coordination, organization, or dissemination of information. The assembly call is typically given by a commanding officer or designated personnel using prescribed signals, such as a whistle, bugle, or verbal command, to alert and gather troops for a specific purpose or operation. It ensures that personnel are promptly assembled and prepared for the next course of action.