Again nonsense. Jeremiah makes it quite explicit in ch.25 that Jehovah's judgement of the nations began first with Judah and lasted for a period of 70 years. The NWT reads similarly to other translations.
No. The order Jerimiah lists the nations doesn't imply a conquering order. It's just an enumeration of the nations "round about" that will serve the king of Babylon.
If that list described a conquering order, starting in verse 17, it means you have Judah conquered before Assyria. How is this supposed to have transpired? Do the armies of Babylon pour out, passing through Asssyria, Persia, without conflict, only to arrive at the nations surrounding Judah, ignoring them as well, but allowed to pass through without resistance? What did Neb say to these nations? "Nevermind the massive army I'm moving through your lands. Just passing through. I'm really after this small state on the coast. But I might attack on my way back"?
Good lord. This is utter craziness. The list of nations is just a list of nations. Verse 29 is translated as "beginning to", not "first".