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human
[ATLA] How pragmatic was the Air Nomad genocide?

So, let's dissect FireLord Sozin's plan.

He wants to take over the world and the Avatar is his greatest threat.

What's his plan?

Wipe out all the Air nomads and consequently kill the Avatar while he is still a child. But there is one problem with this plan, even if it succeeded, even if Aang was located and murdered, it wouldn't necessarily do much except buy the Fire Nation more time, after the death of Aang, another avatar would be born as a Water Bender, what would the Fire Nation do then? Try to kill all water benders?

Even if they did, an Avatar would be born as an Earth Bender, and considering how big the Earth Kingdom is and how they have the largest population out of all the nations, the effort to eliminate all Earth Benders wouldn't be possible regardless of how powerful the Fire Nation is.

To cut the post short, how smart and pragmatic was the plan? To me, all it did was buy the fire nation more time to expand and conquer but not really destroy their ''greatest threat''.

The only way this would realistically work is if the Fire Nation attempted to kill the avatar while he or she was in the avatar state but this is a gamble, and considering that hundreds of avatars that came before died outside of the avatar state only make your chances lower.
gpt
I don’t think Sozin ever expected the war to go on for a century. As far as he was concerned killing the Avatar would buy him at least 15 to 20 years to conquer the world which realistically should have been more than enough time.