Related Clues:

• 28 Across, to a Yank
• Archenemy
• 'Friend or ___?'
• Ones against us
• Red, e.g., once
• "Them"
• Friend alternative
• They might be engaged
• The Grays, to the Blues
• One to keep closer?
• Any Hatfield, to a McCoy
• Parley participant
• Hostile opponent
• Armed adversary
• One of them?