Yes but it wasn't supposed to be there. Are you going to start WW3 for material damages? Even if the entire sub had been destroyed, would you start WW3 for a fe

Yes but it wasn't supposed to be there. Are you going to start WW3 for material damages? Even if the entire sub had been destroyed, would you start WW3 for a few hundred people? No. You take the losses, put a brave face and spin a story about navigation error. Then if you think you weren't in the wrong and they need to get a lesson you destroy something of theirs a while later. Btw, I'm not saying that's what's happened. I'm just hypothesizing that in case it happened like that they wouldn't start WW3 over it.