What was: The Trent Affair?

Picked one by one from a mixed channel. Transcript check: both title readers certain; 2 of 5 sampled certain picks confirmed by transcript, none failed. Channel rule: Include narrated explainers of real historical events, conflicts and places, plus archival instructional/training films. Exclude 'What if' alternate-history videos, sleep/compilation uploads, and anything with a hype-hook title.

A 6-minute video from HelenasDen: “What was: The Trent Affair?”.

Video by HelenasDen, played through YouTube's embedded player.