Digimon Xros Wars: Aku no Death General to Nanatsu no Oukoku
English title: Digimon Fusion
Japanese title: デジモンクロスウォーズ～悪のデスジェネラルと七つの王国～
Alternative titles: Digimon Crosswars, Digimon Xros Wars: The Evil Death Generals and the Seven Kingdoms, Digimon Xros Wars: Aku no Death General to Shichinin no Oukoku
Type: TV
Source: Original
Episodes: 24
Status: Finished Airing
Aired: Apr 3, 2011 to Sep 25, 2011
Broadcast: Sundays at 06:30 (JST)
Duration: 25 min per ep
Rating: PG - Children
Studios: Toei Animation
Producers: TV Asahi
Licensors: Flatiron Film Company
Genres: Action, Adventure, Comedy, Fantasy
Themes: Isekai

Returning to the Digital World, Taiki and Shoutmon learn that the Bagra Army has taken it over and reformatted the world to have Seven Kingdoms, each ruled by a general. 

(Source: AniDB)