I have a suggestion regarding the Aircraft battles that could make them more interesting and challenging. As the title of the topic indicates, it's called Aeronautical Miles or Aeronautical Points (whichever sounds more suitable).
The Aeronautical Miles/Points would be similar to the current True Patriot points (damage). We know that for now the damage you deal in Aircraft battles goes directly to your TP bar, but I think it's time to separate these two types of Campaign battles in this segment as well.
The Aeronautical Miles/Points bar would be added below your TP bar and would show how much miles (points) you have collected for your citizenship country in Aircraft battles, while the TP bar would show stats for ground battles.
The Aeronautical Miles/Points would be equal to the damage you've dealt in an aircraft battle for your citizenship country. There will be several milestones to reach depending on your air rank, so for example, the first milestone would be 5 000 points. As you advance, the milestones would increase up to around 50 000 points (damage), which should be equal to 100 million TP damage. After reaching certain milestones, you will get a reward in currency or gold (and it should be more than you earn for TP, because in Aircraft battles you either fight without weapons and spend more energy than needed or use weapons which are too expensive). If you change your citizenship, you will have to start from 0 miles/points and will be able to get rewards/medals only when you reach the highest number of miles/points you've collected for one of your previous citizenship countries (same as for TP).
The reward you get after reaching these milestones would be received either as a new medal or via a notification.
I hope this suggestion will be accepted by the community and considered by eRepublik Team as it aims at making eRepublik more challenging.