The US Armed Forces are coprised of five separate branches: Army, Navy, Air Force, Marines, and Coast Guard. None of the branches commands the Armed Forces, that job is reserved for the President of the United States, as the Commander in Chief of the US Armed Forces.
The branch of the US armed forces that has admirals is the Navy. The armed forces is made up of the army, air forces and the navy.
US Army
The President is Commander-in-Chief of all US armed forces.
In the US, it is the US Air Force.
The US Congress.
All branches of the US armed forces are responsible for the preparation for war and prosecution of war
Executive
The Congress (Legislative Branch) authorizes all the spending for the government.
The US President is commander-in-chief of all the armed forces of the USA, so that includes the US Marines.
the U.S. Navy
US armed forces are clearly more trained such as the US navy SEALs
The US Army