Final answer:
True,The Chairman of the Joint Chiefs of Staff does provide a channel of communication between the President/SECDEF and the Combatant Commanders.
Step-by-step explanation:
The statement is true. The Chairman of the Joint Chiefs of Staff does provide a channel of communication between the President/SECDEF and the Combatant Commanders.
The Chairman of the Joint Chiefs of Staff is the highest-ranking military officer in the United States Armed Forces and is the principal military advisor to the President, the Secretary of Defense, and the National Security Council.
As the channel of communication, the Chairman of the Joint Chiefs of Staff relays information, coordinates efforts, and provides updates between the President/SECDEF and the Combatant Commanders, who are responsible for the military operations in specific areas around the world.