This is a tough one...
.org might actually be a better fit here, but I'd be surprised if it was still available.
If this was 1985 this domain would be more valuable than gold, but it's not... and NATO has become less "visible" (Good choice of word?) as the UN inserts itself as the police-all institution.
It is long, but it has a widely known meaning.
Overture of 1911 north atlantic treaty organization
Great keywords for SEO, of course.
I'm torn... I've listed highlights and lowlights...
I can't in good conscience say above $500 with the #'s mentioned above, but neither can I overly penalize the name to the point of reg fee.
<waffle>
You need to tell us who you think would want to use this domain and for what purpose. Because I can not imagine an end user right now, despite the perfect keyword combo should the need arise...
</waffle>
-Allan :gl: