He doesn't mean anything like a military school as you probably understand it. We joined the military, and in our training was the closest thing we've ever had to a contemporary school - but only insofar as it made us better soldiers, in our time. We learned logistics, and military strategy, and titan ecology - but there was no classes on language or history, and no math or science beyond what was immediately relevant to our role.

Most of the training there was physical, anyway.