Decals on polished paint

[scalemodelworld]

So here's my latest dilemma. I'm about to polish my first paint job, but I need to add a couple of decals as well. Naturally, the polishing process would wear away the decals, so what's the bog standard process?

Do I just polish and wax, and then add the decals after - leaving them untreated? Do I add the decals then some thin clear coats and then polish, or is that pointless?