 In that battle, they are instrumental in capturing Zero, and almost succeed in killing him in tandem with Luciano.However, Kallen ultimately interferes in the stolen "Guren Seiten", and strikes down all four members of the unit in one swift motion, freeing Zero and killing the quartet (save Marika) in the process.The largest military in the world, Britannia's armed forces are the primary antagonists of the series, divided into many hundreds of ground troops, Knightmare frames, Hoverships and specialized Knight groups.