That is very debatable, all of our military branches are considered to be the best in the world.
Yes, the Air Force is a part of a branch in the Military.
the marine corps sure are a military branch.
executive branch
It is most critical for our military to have, Men and women can both serve their country in each branch of the military.
Department of Defense, which is part of the Executive branch
No, the oldest military branch was the Continental Army founded by George Washington.
The military branch with the lowest IQ requirement for enlistment is the Army.
No, it is independent of the military. It does use military people & equipment to assist. The first NASA astronauts were military pilots.
The Legislative branch
Navy
no
The US Army is the oldest and biggest branch of military in service, they are also the largest land combat force.