@geoffl
My understanding, cobbled together
- the ship was a fully modern warship
- the ship had just departed some ceremonial boat show for military boat nerds (high five), where it was being exhibited before the conflict
- as part of preparation for that event where civilians could walk around the boat and stuff, it had all ammunition removed and was generally rendered safe to the satisfaction of the organizers.
- it wasn't even crewed by the regular duty crew, just a bunch of pr types and whatnot who signed up for this volunteer boat nerd mission (high five again)
And here's where details get more sketchy and less trustworthy
- when the conflict broke out, they changed course to a nearby friendly port and announced their intention to surrender the ship and crew there
- they were waiting for clearance into said harbor when they were torpedoed