Missing ASU first semester?

So I’d like to say my ultimate goal is to attend West Point. I’m very far in the process, and my rep has made it clear that I’m very likely to get my appointment. But I like back up plans. So I got accepted into Northwestern Prepatory (its a one semester civil prep school that trains you in the core classes and SAT and also physicslly prepares you for the Academy). But its one semester only, and I have to choose a school to go to second semester. I got accepted into ASU for the fall of 2018. Would I be able to come in during Spring? Is this something I would have to work out with them personally? Thanks!

Yes, email admissions. Hopefully they can just take your existing application and change it from an application for fall admissions and to spring. (You should also apply to ROTC at your safety school. If you’re competitive for a service academy, you’re competitive for the ROTC scholarship programs, too.)