He could But have is not obligated
As commander in chief, he can issue executive orders to make changes to military protocol itself
The professional military owes its first and foremost allegiance to the Constitution. After the Constitution, the military will obey all lawful orders from the President.
The civilians (President and Congress) are the ones who declare war along with negotiating and approving the military budget. They also approve all promotions from colonel and above, as well as who is the chairman of the .Joint Chiefs and the overall size of the military.
Another way to say 'orders of the President' is 'the President's orders'.
Unless you are in a very senior position you don't question military orders.
It means that the senior military officers take their orders from the civilian government, specifically from the President of the United States. All military officers must be "commissioned" by the Congress, and the President selects the senior officers who advise him. The President and the Congress have the authority to promote, demote, or fire any officer for any reason.
Active Duty Operational Support orders
The president is the commander-in-chief of the military. He can give orders and issue policy statements that affect life in the military, such as concerning the treatment of gays and women in combat. He can lobby Congress for funding and push for particular types of weapon systems. He promotes and demotes the top generals. He chooses the Secretary of Defense.
one who carries orders or sends orders (of some type)
yes at least i think.
Former President Obama issued 277 executive orders during his eight years in office; this was an average of 35 per year. He issued fewer executive orders than George W. Bush, and in fact, he was not even in the top fifteen for the total number of executive orders issued by presidents.
Soldiers are expected to follow orders, including orders about training.