Answer:
The duel of Paris and Menelaus, Book 3.
The breaking of the truce and Agamemnon's inspection of the troops, Book 4.
The victories of Diomedes, Book 5.
Hector's return to Troy and his encounters with Andromache, Helen, and Paris, Book 6.
The embassy to Achilles, Book 9.
The fighting is the thickest in Books
Explanation:
