Could Britain defend Canada from a United US with a Civil War level effort around ~1860?

Who would win a war between an undivided US and Britain around the Civil War?

  • The US decisively wins

    Votes: 23 27.7%
  • The US pulls a limited victory

    Votes: 23 27.7%
  • Stalemate

    Votes: 12 14.5%
  • Britain pulls a limited victory

    Votes: 18 21.7%
  • Britain wins decisively

    Votes: 11 13.3%
  • The British Empire isn’t significantly effected regardless of results

    Votes: 15 18.1%
  • The British Empire is only significantly effect if it loses

    Votes: 7 8.4%
  • The British Empire is significantly weakened regardless

    Votes: 5 6.0%

  • Total voters
    83
, most major coastal cities (Savannah, Charleston, New Orleans etc) probably being reduced to piles of rubble


How, exactly?

More to the point by that stage of the 19th Century it would be considered a war crime. Even Sherman, engaged in suppressing a rebellion where broader rules of engagement were internationally acceptable was careful to target duel use facilities and materials only. It would be acceptable to bombard fortifications and shore batteries and military installations and production facilities or land troops and have them destroy the same but purely civilian structures should not be deliberately attacked unless pressed into some military purpose (such as being occupied by active defenders).
 
More to the point by that stage of the 19th Century it would be considered a war crime. Even Sherman, engaged in suppressing a rebellion where broader rules of engagement were internationally acceptable was careful to target duel use facilities and materials only. It would be acceptable to bombard fortifications and shore batteries and military installations and production facilities or land troops and have them destroy the same but purely civilian structures should not be deliberately attacked unless pressed into some military purpose (such as being occupied by active defenders).

Fair, but the British blockade of the coastal Southern cities would utterly cripple Southern exports, not to mention that even if it was unintentional a rogue shell could cause a fire in these cities. Not to mention, the breakdown of trade would cripple the economies of these cities.
 
Fair, but the British blockade of the coastal Southern cities would utterly cripple Southern exports, not to mention that even if it was unintentional a rogue shell could cause a fire in these cities. Not to mention, the breakdown of trade would cripple the economies of these cities.

Didn't happen OTL when the Union shut down traffic. Should note that blockading wasn't easy, and US retained ports in the South. This goofy TL, the British would have to invade and invest in a port, unless you expect the UK to supply/run the Blockade from Halifax and the Bahamas
 
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