If you build a man a fire, he'll be warm for a day.
If you set a man on fire, he'll be warm for the rest of his life.
I would say the Navy.
But mostly because of my extreme love of Mass Effect. lol
If there's a god, damn it she won't mind.
If there's a god, baby she won't mind.
It makes no difference. Air Force command structure evolved from it's Army Air Corps roots, Navy command structure evolved with the Navy. Both Army and Navy have experience managing large numbers of skilled trades to achieve military objectives. Admiral? General? Doesn't matter, they'll both stab the enlisted guy in the back if needed. An turd doesn't smell any better when it's called petunia.
It would without question begin as an air force branch. Right now you have the Air Force Space Command that controls all military space vehicles. The first military vehicles in space will be like the X-planes being tested now and that means they will without question be part of the air force.
Think like how the air force began. At first it was under the army because it was most commonly used in support for the army. Personally, I think most countries after the U.S. will just make a separate branch if the U.S. doesn't branch it off from the Air Force.
When it comes to rank there will obviously be a mixture no matter what as any space force will likely include smaller fighters and ground forces.
"For what is Evil but Good-tortured by its own hunger and thirst?"
- Khalil Gibran
"A nation can survive its fools, and even the ambitious. But it cannot survive treason from within. An enemy at the gates is less formidable, for he is known and carries his banner openly. But the traitor moves amongst those within the gate freely, his sly whispers rustling through all the alleys, heard in the very halls of government itself. For the traitor appears not a traitor; he speaks in accents familiar to his victims, and he wears their face and their arguments, he appeals to the baseness that lies deep in the hearts of all men. He rots the soul of a nation, he works secretly and unknown in the night to undermine the pillars of the city, he infects the body politic so that it can no longer resist. A murder is less to fear"
Cicero Marcus Tullius
US Space Federation
CORPORATE GREED AND UNION GREEDDEMOCRATS AND REPUBLICANSDESTROYING THE BEST OF AMERICA ONE DAY AT A TIME
This is the worst kind of discrimination. The kind against ME! ~ Bender
In a keeping with my Constitutional Military premise I would have to pick The Department of the Navy (which oversees the Marine Corps and the Navy). This is the only professional peacetime force the US Constitution allows. The Navy already has Air, Ground, and Sea covered and Space would be added if needed.
'The whole universe is going to die!'