You can see exactly what is need to get to the next level. On your home page, in the list that shows your ranking, click on "Level 1" beside your name. You'll get a pop up that contains a link to what's needed to get you to the next level.
I'm having this problem, too. We know WHAT we need, we just don't know how to get it.
In my case, it's the defense index. It's hovering below 20 and will not budge! I've bought defenses and offenses and still..any progress I've made has been in .5 or 1 point incriments.
1. It is a moving average so it will take some time for arms purchases to be reflected.
2. Only defensive weapons count towards defensive force index (I assume that is what you mean).
3. Buying three weapons here, five there isn't enough. You need several thousand weapons to raise it to level. If you are doing it from a secured mode nation that you don't really need to defend, the most cost-efficient way to do it is with missile interceptor batteries. Ammo doesn't count.
With more than one country, are they all averaged? Is there a guide to what weapons and how many will give, say 100 DI, if you actually might need it to work?
Senobia, the index isn't a direct reflection of what you have now, it also takes into account what you had in the past 12, maybe 18 game months. With your 20k batteries, you will see your index rising over time and eventually it will level out.
its Alt+F4 then there is a button on your computer somewhere that looks like a circle with a line through only half of it. press and hold that until the status of your computer changes. Once that is done go outside and do something productive your computer will revert to normal after about 120 hours. there FFW ffs.