The Royal Navy could concentrate on disrupting the Union blockade while the Confederacy fought the land war. Coastal forts could resist an attack, although the source passage cites later examples of determined warships forcing their way past such defences. The captions garble the officers’ names, so the comparison cannot be made more specific from the stored transcript. Britain would gain more by keeping shipping lanes open than by accepting that risk. Confederate railways, rivers, and supply routes ran mainly between the interior and the coast, leaving the South with weak lateral logistics. Maritime access could sustain money, arms, ammunition, food, and commercial exports. Within the scenario, British recruitment in Ireland might also reduce one source of Union manpower. Union advantages in population and industry would remain formidable, but converting them into victory would become harder against a Confederacy supplied by sea.
Chapter · 25:27-29:03
Breaking the blockade changes Confederate supply
The decisive British contribution would be keeping Confederate trade open while avoiding costly attacks on American coastal fortifications.