Then the Minister of Defence (who is a full senior member of cabinet) presides over all military matters.
Then the Secretary (senior civilian public/civil servant) and the Chief of Defence (military usually rotated between services) have what is called a diarchy. This means equal but different with same levels of responsibility but across different aspects. Those two must get along and communicate well together.
Below that we have a plethora of positions, Head of Army, Head of Navy, Head of Air Force (all military); along with Head of Support (civilian or military).
Next are others like Land Commander, and Vice Chiefs, plus senior civilians.
A white board plot of the chain of command along with direct responsibility, responsive to lines, and a myriad of other connections could cause an aneurysm if looked at too long. Of course these are the official links not the informal ones that actually make things work.
I'd imagine that most military hierarchies are somewhat similar, just with different titles.
saber964 wrote:In the United States the SecNav is a lower ranking member of the cabinet IIRC the top members of the cabinet are SecState, SecDef, SecTres, AttGen. Also the pecking order of the service secretaries are SecArmy, SecNav and SecAF