- France, and subsequently Paris, is the centre for believers in Michael.
A large scale massacre led by demons happened. The temporary government established when Napoleon passes away has been overthrown by the German army and the Paris Commune is standing up against it. The French are fighting against each other. 
It has been established that, despite it seemingly being orchestrated by Hell, the incident was a ruse by Heaven to draw away the attention of demons from William Twining, whom Uriel was aupposed to summon to Heaven.