There's been similar requests before, maybe you should read there why this hasn't been done yet.
Phoenix73 wrote:When attacking or fortifying, allow me to stay on the map instead of moving down to the dropdown menu. When I mouse over a territory, it should highlight. If I'm in attack mode, when I click, it highlights a different shade, and then the potential attack areas are highlighted. I can then click the one I want to attack. The dice roll as usual. But the dice should perhaps be in a popup, instead of below the map, so that I can keep my mouse right there. Perhaps the popup is semi-transparent so i can see the map below while i'm pondering whether to continue attacking or not. Then, when i conquer, the popup asks me how many troops to move in - with a slider control instead of dropdown: 1 draggable click instead of 2 separate clicks. Actually, if you look at the Attack game on Facebook, it would work a lot like that.
I wonder what kind of coding you'd need to pull that off! Would probably be better to recreate the game in flash/silverlight (like the one in FB), and I guess that idea won't fly with the developers.
Once you get used to the drop down's they're o.k, but the obvious advantages of a clickable map are undeniable.