I always try to stay one below the highest build cap. That way I can build up without the worry of a war. The only time I have the number one build cap is to get a lot of missiles at once. I think I'm becoming like Tkobo with missile use.
I destroy a region's entire industry at the start of war and nearly all of the region's bases too. And yes the UN is just a place in New York now. Like a bank. Likes to get money but hates to fork it over when its needed. As right now. All they have to do is well do what they say. If they say u better not have such and such weapon by a certain date or u will not have them after we're through with u, I think countries would listen to the UN. Now in the game the WM I wish would have attacked me several times. It been a mess for both of our sides.