Code BLUE: Peace, mild threat or diplomatic unrest/tension
Code GREEN: Peace, moderate threat or diplomatic unrest/tension
Code YELLOW: Mobilisation of defence forces, high threat or diplomatic unrest/tension
Code ORANGE: At war, external conflict or internal conflict with hopes of diplomatic solution
Code RED: At war, external conflict with little hope of diplomatic solution, or internal conflict
Code BLACK: At war, WMD's deployed, severe internal conflict, or imminent risk of destruction.
There are also two sub-codes, semi-official codes that can be used to indicate a specific situation.
Code AMBER: Used in conjunction with Code ORANGE to indicate that there is a high risk that an external conflict will turn into an internal one.
Code WHITE: Used in conjunction with Code BLACK to indicate that a surrender is in place, and all official military actions are to cease.