Related Clues:

• Ill-wisher
• Source of conflict
• The Axis, to the Allies
• Sentry's classification
• "Who goes there, friend or ___?"
• Cassius, to Caesar
• The FBI, to the mob
• Grant, to Lee
• Them, often
• Them, with "the"
• Am archaic enemy
• An archaic enemy
• Hostile person, foe
• Foe, adversary
• Not for me with my end