I was always under the impression that the Gog Magog war was much later. In fact, it seems like it’s the final war and even follows Armageddon and the millennial reign.
Revelation 20:8 NKJV
and will go out to deceive the nations which are in the four corners of the earth, Gog and Magog, to gather them together to battle, whose number is as the sand of the sea.
But honestly, I’ve never studied this.