5-50. Support area commanders defeat Level I and some Level II threats within their assigned bases and base camps. The commitment of a mobile security force, reserve, or a TCF becomes a significant mission command and potential fratricide problem that rehearsals and standing operating procedures can mitigate. Typically, the support area’s commander supervises the operations of the response force, the echelon reserve, and the TCF since these friendly forces may converge with other stationary friendly forces.