On top of that, the most popular form of Christian millennialism nowadays is a belief in "the Rapture." This interpretation says that the true believers will all vanish from the face of the earth and be taken to Heaven before the Battle of Armageddon starts. Those of luke-warm faith who are "left behind" (as the book title implies) will supposedly have to deal with nasty stuff.
"Rapture" millennialism is the polar opposite of the Muslim's "jihad" millennialism.