Nice modern take of the tower defense genre.
It could use a button for making time go faster though.
And once your choppers are destroyed and you don't have money for a new one there should be a way to still make money or at least an instant game over, instead of just having to wait for 20 tanks to go to the finish.
to chefchaot Russia and Turkey are in Europe, check Wikipedia for "Europe", if you don't believe me. If anything should have been left out, then Cyprus, but I consider that Europe too. :P
I think I found a bug. When trying to place the 100k radar on the map, it wouldn't let me. So I then decided to try and select the 70k one, but the 100k radar then stuck to the 70k's pic on the left.
You can buy it at the store - the little house on the surface ^^