The military is usually pretty good about terminology and has handily invented lots of it.
But when it comes to 'Classified'... yikes. It's just awful.
What I mean, in case it isn't obvious, is that 'classified' can be a verb and 'Classified' (which is not commonly capitalized, but I'm trying to maintain modicum of sanity in here) is a level of classification.
So a document might be classified as Classified, or it might be classified as Unclassified, or it might be unclassified.
Or a document previously classified as Classified might be declassified so now it is classified as Unclassified.
How did such a abominable situation come to exist and persist?