Fusion Fighters United Army

The Xros Heart United Army (クロスハート連合軍) is the allied army of the Fusion Fighters and Blue Flare.

In the anime, it was born after Mikey Kudo, the Fusion Fighters' General, returned from the Human World. During the campaign against, he finally joined forces with Christopher Aonuma's Blue Flare army.

In the manga, the united army was created after the Fusion Fighters and Blue Flare worked together to defeat at Odaiba in the Human World.