Verified answer

The Marines are associated with the Navy, and the Air Force branched off from the Army

But as for working with each other, I have worked on missions with people from all Branches when I was in the Army

Each branch has there pride to uphold but they all have to work together at some point otherwise nothing would get done and they would all just fight with eachother, each branch has a specific set of skills or training that benefits the others example the Marines and Army will train for a deployment together or the Army will help train the Airforce for deployment and visa versa hey all help eachother out and work with each other at times.. what one branch lacks in skill the other has the airforce has planes the navy has ships and the army and marines work on the ground they all have to coperate and work together

The ARMY was created before we became the United States. The Continental Army was founded on June 14, 1775, when the Continental Congress authorized enlistment of riflemen to serve the United Colonies for one year. Every military branch after that was some how formed from the army the airforce being the youngest branch of military

The Air Force works with the Army in certain cases. Like TACP's are the AF guys out with the Army who call in air strikes. I've been deployed with the Army and i'm a Civil Engineer in the Air Force. We built stuff for them at the deployed locations.

The Air Force split from the Army. The Marines are closely intertwined with the Navy.

We refer to that as Joint Operations. And yes, we partner across the forces in just about every mission. But it changes as to what and how we do Joint Missions at different levels from the Tactical to the Strategic and including the Operational. Fact of the matter is, the rivalries that get a lot of hype really don't matter to us all that much, other than with the guys who went to the respective academies and then only on the days the academies play against each other.

Generally the air force provides transportation and fighter support for the Army

And the navy provides transportation and helps with fighter support for the marines.

How it generally works:

Marines work for the Navy, all the other branches are separate.

Navy moves to the position and takes control of the waterways. They launch the marines and they invade and project force ashore. Once the town is secure the army occupies it. The air force bitches that they don't have the money or the manpower to adapt their cold ware era planes and tactics so they sit on their *** and play video games while periodically doing really expensive bombing runs on fairly inexpensive targets

Or something like that

Generally branches will stay within branches, but in a general sense all the branches work together. Ya, there's some rivalry but when it comes down to it we all work together.

All of them are partners. The combatant commanders run unified commands. It is not high school, there are no high school rivalries. (And to be honest, I have no idea what your comparison to high school is supposed to mean. Did you go to a school where the jocks and the geeks somehow "partnered up" against the stoners and the greasers? I don't really care.)

Uh none of them guarantee that. Only that you can go to BCT together IF you both have the same MOS or similar AIT start dates. After that you are on your own.