I find it annoying that I can't see how big another countries army is until I attack them. I only see their military tech, but even that is unreliable as you don't know what techs they took. I would like to see how many regiments they have because that is more clear than the tech level. Also, maybe a "flashlight system" where you can see if they are stronger, weaker or similar in army strength, like in CK3.