Aeneid
Virgil
the siege of the Trojan camp and the night raid of Nisus and Euryalus in Book IX.
The Iliad
Homer
the duel of Paris and Menelaus that Aphrodite undoes in Book III, and the truce broken by Pandarus in Book IV.
Theme
War
War as an event: battle, soldier, siege, what war does to those who come back.