Wrong scholar! Not according to your beloved WTS.
[Jeremiah 25: 11 And all this land will be reduced to ruins and will become an object of horror, and THESE NATIONS will have to serve the king of Babylon for 70 years.”’ 12 ‘But when 70 years have been fulfilled, I will call to account the king of Babylon and that nation for their error,’ declares Jehovah,]
[8-1-81 WT p. 27-28 – “The idol-worshiping Babylonians now were in line for God’s judgment to be executed upon them. That happened in 539 B.C.E. when Babylon was overthrown by the Medes and the Persians.”--
Nonsense you need to study our publications more closely and our comments on Jer. 25:11