Why prestige could make a limited crisis escalate

The video frames British power as partly a question of perceived willingness to defend sovereign rights. Britain traded more with the Union than with the Confederacy, but that commercial preference could not erase the precedent created by an unanswered attack on a Royal Mail steamer. Maritime law depended heavily on precedent, so accepting the seizure without redress could invite other states to test British shipping and diplomatic protections. London was caught between moral objections to Confederate slavery and the need to show that attacks on its flag carried consequences. Failure to act might avoid one war but weaken the credibility on which British influence elsewhere rested. That made a limited punitive response plausible even though Britain had no interest in fighting indefinitely for Confederate independence.