There is ground damage in a battle and it's not started yet

This would be due to Defence Systems in the region. However, that should be displayed in the battlefield stats page

Yeah I think it was registered as "ground damage" but nothing specific.
And that should be around 1mil flat dmg no? I thought this was the npcs' hits somehow before the battle started.

Perhaps it'd come handy to indicate the defense system's damage somewhere in the above shot?

Defence Systems are affected by their integrity (so at 50%, they're providing 500k for example).

This damage will now be logged as a new 'Defence System' battle action, so it should be more identifiable both in the battlefield events log, and in the after-battle stats page. I'll need to tweak the display as we get live battles involving Defence Systems, so it probably wont look great right away.