Why will the nations gather together at Armageddon?
The nations gather at Armageddon because Satan, indwelling the Antichrist, calls the world's leaders to send their armies to the Middle East to eliminate the Jewish people, whom he sees as the real problem. This gathering ultimately becomes Satan's final war against Christ.
Les explains that after the sixth vial dries up the Euphrates, allowing millions from the East into the Middle East, the three frog-like spirits symbolize Satan's communications through the Antichrist. Les teaches that Satan will contact national leaders and summon their armies to the Middle East to solve mankind's 'real problem,' as Hitler called it—the Jew. Les views this final Armageddon gathering as Satan's attempt to annihilate the Jewish people, yet it becomes his final war against Christ. Revelation 16:14 calls these demonic spirits that work miracles and gather the kings to the battle of the great day of God Almighty.
For they are the spirits of devils, working miracles, which go forth unto the kings of the earth and of the whole world, to gather them to the battle of that great day of God Almighty.