We're living in Babylon now. The Book of Revelation says she is going to be destroyed in one hour.

I think he's talking about a revolt.

Revelation 17:16 And the ten horns which you saw on the beast, these will hate the harlot, make her desolate and naked, eat her flesh and burn her with fire.

Revelation 18:8 For this reason her plagues will come in a single day, death and mourning and famine, and she will be burned up with fire; for mighty is the Lord God who has judged her."

[fire in Biblical terms sometimes means anger]

Revelation 18:9 And the kings of the earth, who committed sexual immorality and lived in luxury with her, will weep and wail over her when they see the smoke of her burning.

Revelation 18:10 They will stand far off, in fear of her torment, and say, "Alas! Alas! You great city, you mighty city, Babylon! For in a single hour your judgment has come."