Calhoun and Van Buren (7)

• The Joker and the Penguin, to Batman
• They're against us
• Hostiles
• Bosses of video games, e.g
• "Wise men learn much from ___": Aristophanes
• Ones at war
• The Hatfields and the McCoys, e.g
• Isaac Bashevis Singer novel

Wikipedia Word definitions in Wikipedia
" Enemies " is the 17th episode of season 3 of the television show Buffy the Vampire Slayer .