The concept I have in mind is that of Geo-political strategy, military strategy, economic strategy... overall global strategy. I want this game to be all strategic in nature, where you are the leader of either a custom nation or a realistic nation.
In order to do this, there are should be atleast 3 manageable areas of focus: Politics, Economics, and Military.
The inspiration I have comes from games like:
Advance Wars (Tactical game for Nintendo Gameboy Advance and DS)
SuperPower 1 and 2 (PC games)
Geo-political simulator (PC Game)
Civilization (PC/Board game)
Risk
Diplomacy