Versions of the United States Army Field Manual 3-0 circulated circa 1999 define C2 in a army group because the exercise of authority and direction by a properly designated commanding officer over assigned and hooked up forces within the accomplishment of a mission. Minimum two years of navy service for Regular forces, and three years for Reserves. Later, throughout Atlantic Fleet mining workouts between 29 October and 24 November, Yazoo laid two giant United States Coast Guard buoys