Directed and produced by Oscar-nominated filmmaker Oren Jacoby, the film is inspired by former priest James P. Carroll's 2001 book Constantine's Sword.

The counter balance to this view that most wars are political or economic in nature is not discussed, nor are the circumstances of attacks on European Christendom through the ages by hostile forces, secular or alien religions.

Carroll's thesis is explained as his father's supposed translation to Carroll's question as a boy of what the letters IHS stood for in churches, being the IHS monogram for the name of Jesus, as Constantine's vision of "In hoc signo vinces", "in this sign you will conquer", giving a fabricated union of state military with church dogma.

Carroll focuses on Catholic and evangelical anti-Judaism, and invokes the cross as a symbol of the long history of Christian xenophobic violence against Jews and non-Christians,[3][4] from the Crusades, through the Roman Inquisition and the creation of the Jewish ghetto, to the Holocaust.

The film's final chapter, "No war is holy", concludes with views of military cemeteries as Aaron Neville sings "With God On Our Side".