[ Jim doesn't need people to believe him, he'll just appreciate it for what it means. Jyn struck him as someone very closed off from the beginning, so any sign that she's getting friendlier around him is a very good thing. ]

I... alright, well, I can assure you Starfleet has absolutely no intention or means to actually destroy any stars out there. [ Let's just not talk about Ambassador Spock and his not-so-neat trick with the red matter. ] Our fleet is made up almost entirely of exploration vessels. They are armed and capable of being in battle, granted, but it's mainly for defense purposes. More of a... 'attack them if they attack us first' kind of thing.

[ And even then, Jim personally would rather only retaliate if there really was no other alternative. ]