This is what immediately came to my mind.
Revelation 16
12 The sixth one poured out his bowl on the great river Euphrates, and its water dried up, in order to prepare the way for the kings from the east. 13 And I saw three unclean spirits that looked like frogs; they came from the mouth of the dragon, from the mouth of the beast and from the mouth of the false prophet. 14 They are miracle-working demonic spirits which go out to the kings of the whole inhabited world to assemble them for the War of the Great Day of Adonai -Tzva’ot. 15 (“Look! I am coming like a thief! How blessed are those who stay alert and keep their clothes clean, so that they won’t be walking naked and be publicly put to shame!”) 16 And they gathered the kings to the place which in Hebrew is called Har Megiddo.