"Fierce Battle! The Darui Division!!" (激戦!ダルイ部隊!!, Gekisen! Darui Butai!!, Viz: D Unit's Battle Challenge!!) is chapter 526 of the original Naruto manga.
The Black Zetsu's attempt to capture the daimyō of the Five Great Shinobi Countries fails due to decoys. The Mizukage escorts the Frost Daimyō to a new location. The First Division goes in to battle against the White Zetsu Army. Chiyo's group arrives at the Surprise Attack Division's location. Ōnoki provides backup for Gaara's division. Darui faces the Gold and Silver Brothers.