A timeline of the teaching on who Gog is:
WHO IS GOG OF MAGOG?
Russia - WT June 1880 p.107
"Also the
xxxix chapters of Ezek., after
speaking of trouble with Gog - Russia - after their return, and dwelling in
the mountains of Israel; gives the purpose for which it is
all brought about; ..."
A demon prince - WT 1932 June 15 p. 179 Para 7
"GOG AND MAGOG"
The prophecy
therefore seems to relate to the satanic organization of the
earth, the chief part of which is Big Business, and also to other
parts of that organization under the supervision of Gog, the prince of the Devil's organization
A spirit ruler but not a demon prince - WT 10/01/53 Para 6
Hence the
suggestion of twenty years ago that Gog was an eighth demon prince is now seen
to be without proof. However, that suggestion was leading us in the right
direction for locating Gog, namely, in the spirit world and not in the visible
earthly, human society. Therefore Gog
still represents, not a visible human ruler or nation, such as Russia, but a spirit
ruler.
Satan - w54 12/1 p. 733 par. 22
Never Fighting Illegally or Quitting World-wide Preaching
Jehovah is using us, his witnesses, therefore, by
our fighting for freedom to preach world-wide, as bait for the Devil, named Gog in the book of Ezekiel.
A coalition of nations - WT 2015 May Questions From
Readers
When we compare
all these Scriptural references about the final attack on God’s people, it
becomes evident that the name Gog of Magog refers, not to Satan, but to a coalition of nations..