The series was later split into six comic books under a new deal between Humanoids and Devil's Due Productions and finally fully released in 2009.

The history makes liberal use of references to real world (historical) characters, including among others Wilhelm Canaris (also referred to by the codename "Trinity"), Field Marshal Günther von Kluge, Winston Churchill, Vlad Tepes and Radu cel Frumos.

Real world organizations referenced include the London Controlling Section, the Abwehr and the Special Operations Executive.

John Cassaday won the 2005 "Best Penciller/Inker or Penciller/Inker Team" Eisner Award in part for his work on this title (as well as Astonishing X-Men and Planetary).

[2] A live-action film adaptation is in the works, with Nacho Cerda due to direct and based on a script written by Richard Stanley.