Troilus and Cressida is Shakespeare's "problem" play about the Trojan War. As the opening Chorus tells us, the play "begins in the middle" of the epic conflict, and counterpoints the drama of battle with the romance of the title characters. Just as Agamemnon and his Greek forces (particularly the smooth-tongued Ulysses) attempt to woo the invincible Achilles to resume fighting on their side, the Trojan go-between Pandarus tries to bring together Troilus, a son of King Priam, with his niece, the lovely Cressida.