Jon Snow convinces the Night's watch and the wildlings to put aside their differences and fight together against a common enemy by appealing to their shared humanity.
Jon Snow (character) . Knowing his prospects are limited by his status , Jon joins the Night 's Watch , who guard the far northern borders from the wildlings who live beyond The Wall . Jon returns as a prominent character in a A Dance with Dragons ( 2011 ) , working to negotiate an alliance between the Night 's Watch and the wildlings .