The Bart of War/DVD features

"The Bart of War" is included on the The Complete Fourteenth Season.

Commentary
DVD commentary is included on The Complete Fourteenth Season boxset with comments by Al Jean, Marc Wilmore, Matt Selman, Kevin Curran, J. Stewart Burns, Michael Price, Tom Gammill, and Mike B. Anderson.

Deleted scenes
Deleted scenes are included on The Complete Fourteenth Season boxset. A hidden deleted scene is available by selecting the chair.