Here's what's important:
* Accreditation: The school must be regionally accredited by a recognized accrediting agency. The military generally accepts regionally accredited institutions, as this signifies a certain level of quality and standards. National accreditation is often less accepted. You should always verify the school's accreditation status on the agency's website.
* Credit Type: The military will accept credit from schools offering college-level courses. This could be traditional semester hours or credit hours earned through other means (like CLEP or DANTES exams). They are generally not looking for high school level equivalencies.
* Specific Branch Requirements: Each branch (Army, Navy, Air Force, Marines, Space Force) may have slightly different policies regarding educational requirements and acceptance of online credits. Check with the education office of the specific branch you're interested in. They'll have the most up-to-date information on their acceptance of specific institutions and credits.
In short, you can't just name an online school and say "the military accepts this one." You need to choose a regionally accredited online school that offers college-level credit and then verify with your branch's education office that they'll accept the credits from that *specific* institution.