The intent of this Subtitle is to provide for the preparation and carrying out of plans for the mitigation of, preparation for, response to and recovery from disasters and major emergencies for the emergency management of persons and property within the County in the event of an enemy attack, sabotage or other hostile action, or from fire, flood, earthquake, hurricane, or other natural causes, and to provide for the coordination of the emergency management functions of the County with all public agencies and their various departments, with other Counties, cities and political subdivisions, and with private agencies, organizations, persons and corporations of every type to insure the complete and efficient utilization of all facilities available to combat any disaster or emergency. The Office of Emergency Management created by this Subtitle shall be the coordinating agency for all activity of the emergency management program, and during a period of attack, terrorist act or natural disaster it will act as the instrument through which the County Executive may exercise the authority and discharge the responsibilities vested in him by this Subtitle. This Subtitle shall not relieve any County department of the normal responsibilities of authority ascribed to it, nor will it adversely affect the work of the American Red Cross or other volunteer agencies dedicated to disaster relief activities.