2-24. Army command relationships identify the authorities and degree of control of the gaining Army commander. For example, operational control gives gaining commanders the authority to assign missions and further task-organize forces placed under their operational control. Tactical control on the other hand, gives gaining commanders the authority to assign missions, but not further task-organize forces placed under their tactical control. The type of command relationship often relates to the expected longevity of the relationship between the headquarters involved and quickly identifies the administrative and logistic support that the gaining and losing Army commanders provide.