Related Clues:

• Warfare opponent
• Mongoose, to a snake
• The Blue and the Gray. e.g.
• Hardly a follower
• 28 Across, to a Yank
• Unnamed culprits
• 'Friend or ___?'
• Ones against us
• Red, e.g., once
• "Them"
• Unidentified rumor source
• Friend alternative
• Subjects of a Nixon list
• They might be engaged
• The Grays, to the Blues