JLA Classified #26
Nice use of the Waterbearer Aquaman, presumably this fits in just after Veitch's run and before he changed back into his old costume. He was at loose ends during that time, so JLA activity is probably a good fit. (SPOILER)I think his comments on not messing with nations fit Arthur as King, as he'd hardly want the Justice League to interfere with Atlantis when he ruled it.(END SPOILER) A nice little set-up story. Go read it.