Click on one of the green pictures of corporations that look like a factory with a chimney. The attack screen will show up again. Select the second "Attack and Bombing unit" it is fully supplied and has a lot of ammunition.
Select all the Attack helicopters, all the bombers and all the drones for the attack.
Click "attack" and the report. The corporation is probably destroyed with many dead and wounded. The war index of your enemy is lower. The corporation is burning.
Click "Abort Attack", select another corporation and repeat the process. You cannot select a RED corporation. It is not a state corporation but rather a private one and cannot be attacked.
If you do not find a corporation to attack, go back to the list of targets, select Corporations and go through the list.
By the time you destroyed all the corporations, the war might be won already. Go to 6.
