Famine, plague, death and war... that's a pretty good description of 1917-18. The war was meant to end quickly, but by 1917 it seemed to be set until the end of time. No wonder everyone dreamed of an apocalyptic intervention.

Religion appears in so many contexts in WW1. Religion shaped the national identities and ambitions of several of the key players, especially Germany and Russia, both of which defined themselves as messianic nations. In both countries too, secular elites delved deeply into apocalyptic and prophetic ideas, giving their nations a millenarian bent.