text: Chapter 2
  Figure 2-5. Integrated with lead nation command structure
  2-50. Another example of a standing integrated command structure is the Combined Forces Command,
  Korea. This integrated command structure has evolved over years of cooperation between the United States
  and the Republic of Korea. The Combined Forces Command staff and the staff of its subordinate ground
  component command are fully integrated.
  COMBINATION COMMAND STRUCTURE
  2-51. The lead nation concept and a parallel command structure can exist simultaneously in a coalition. This
  combination command structure occurs when two or more nations are the controlling elements for a mix of
  international forces. This structure is more desirable than the parallel command structure. An effort to achieve
  a total lead nation command structure for unity of command is preferred to achieve more efficient C2 during
  a multinational operation.
  PURPOSE OF COMMAND RELATIONSHIPS
  2-52. The Army has doctrinal definitions for command relationships. Those are the same definitions used by
  the joint community and listed in the DOD Dictionary of Military and Associated Terms. However, as a
  member of NATO, the United States agrees to NATO definitions for command relationships. The NATO
  definitions differ from the U.S. definitions. Additionally, Combined Forces Command directives define
  specific command relationships between the Republic of Korea armed forces and U.S. Forces, Korea.
  Commanders understand how each nation defines command relationships to operate in multinational
  operations. Multinational force commanders understand what they can and cannot do with forces from each
  troop contributing nation. (For a further explanation of the U.S. view of command authority, refer to JP 3-16.)
  2-53. To provide an understanding of some of the issues involved in the different aspects of command
  authority, see Table 2-1. It illustrates command authorities in NATO definitions. Allied doctrine requires the
  national authority to always retain full command authority.