 In addition to FEMA, other agencies and organizations which participated in the exercise included the Morris County Office of Emergency Management, the New Jersey National Guard, the Military Auxiliary Radio System, the Metro Urban Search and Rescue Strike Team, the U.S. Army Corps of Engineers, the FBI, the New Jersey State Police, various municipal departments of the City of New York, and others.Gotham Shield occurred simultaneous with several partnered exercises testing the responsiveness of different agencies of the United States in the fulfillment of their own organizational priorities as they would apply to the core attack scenario, including Vibrant Response (led by United States Army North), Prominent Hunt 17-1 (led by the Domestic Nuclear Detection Office), and "Fuerzas Amigas" (a joint planning event of the Mexican Armed Forces and United States Armed Forces).Ardent Sentry 17 (led by the Northern Command), was another simultaneous operation which focused on military aid to the civil power, specifically "marshalling simulated forces".