Good effort!
I am very impressed by the quality of your first submission, although I know that you have been working with Flash for a while now ;)
I can tell that you really put a lot of effort into this, and code-wise it feels very solid. There are some flaws, like for example I somehow managed to get my amount of metal down to -600, but this is a complex type of game to do and I still think you pulled it off really well!
Graphics were really good as well and there really was only one thing that I do think the game lacks, but that is unfortunately the most important factor: fun. Now, I'm usually not too big of a fan of games like this one, so it might very well be just me who thinks so though. It just felt like there was too little for you to do when you attacked: You have your units, you send them in, and hope for the best. The concept is promising though, and I think that if you expand upon it and give the player more power over the situation, "Year 2323" (or whatever you might choose to call it ;] ) might very well be subject for a daily award of the higher ranks :D
I am giving you a 7/10 with my review, and 5/5 with my vote (normally I would probably have given it 4/5, but I think this is well underrated).
3.11 / 5.00 (+ 0.045)
Keep up the good work!