Final answer:
The Institutional force does not represent a warfighting capability and is not postured in unit type codes.
Step-by-step explanation:
The element that does not represent a warfighting capability and is not postured in unit type codes is Institutional force. Readily available force refers to the forces that are immediately available for deployment and can be quickly employed in combat operations. Enabler force refers to the units that provide critical support functions such as logistics, intelligence, and communications. Inplace support includes units that are already in the theater of operations and provide ongoing support to the warfighting units. Institutional force refers to the units responsible for administration, training, and organizational support.