Related Clues:

• They're hostile to you
• Contender for your title
• Adver-sary
• People pointed at
• ___ forces
• Us and them, maybe
• Sci-fi film about mutant ants
• Opposite camp
• Traitor, e.g.
• One of ''Them''
• Those folks
• __ lines
• Traditional battlers
• McCoy, to Hatfield
• 1954 mutant movie