Assuming the UK would become involved in ACW on the side of the CSA in the wake of the Trent Affair and they would defeat the US together, what could be their worst possible peace terms?
Would they be willing to move Canada's border south, for example to the 46th parallel?(...)Britain would probably demand northern Main since they have claims on the territory. I could portentally see some adjustment to the border of Washington state as well. (...)
There are no allies for America to court. Russia is licking its wounds after Crimea and rebuilding, France has a vested interest in seeing America crash and burn for their Mexican adventure, ditto Spain due to their dabbling in Latin America. That leaves only Austria and Prussia, neither of which cares about the Americas or wants to raise Britain's ire for nothing to gain.(They could look for allies against Britain and go in for a round two, I suppose, but given that all the other great powers are on the other side of an ocean and the 1860s is peak Rule Britannia era, I don't think they'd be of much help.)
I think both sides would be extremely resistant to the splitting up of states. I even think that the counter-secession of West Virginia would be called into question by a victorious Confederacy, assuming Britain backed them.The worst terms for the US that remain sane would be for plebiscites in all border states, both Union and Confederate, but NOT at the state level but rather at the county level. Then the borders are redrawn accordingly, probably with a few modifiers to keep everything contiguous. That's the sort of terms that are most likely to NOT provoke another war within 10-15 years, which is worst case for the Union, because they'd almost certainly win that war.
A fair bit of Tennessee and Virginia go Union. Parts of KY and Missouri go Confederate, probably even a tiny bit of Illinois.
There would be substantial resistance, but the facts on the ground are that some counties are pretty heavily secessionist even in Union states and some counties are unionist in Confederate states. Those disaffected counties are where the flashpoints of the next war between the CSA and USA are likely to crop up. If the peace negotiators are really good at Peace, they'll redraw the state boundaries. A bit of Southern California providing a port on the Pacific would probably sweeten things adequately for the CSA to accept that West Virginia isn't coming back, along with part of Tennessee, but parts of the Union Slave states are going to the CSA.I think both sides would be extremely resistant to the splitting up of states. I even think that the counter-secession of West Virginia would be called into question by a victorious Confederacy, assuming Britain backed them.
Why not ally the Confederacy, after things have settled down? An unfortunate brothers' war that doesn't have to ruin the future. Their border is clearly delineated and without disputes, they both have areas of expansion against the UK (Canada and the Caribbean) and they both have almost the same heritage.There are no allies for America to court. Russia is licking its wounds after Crimea and rebuilding, France has a vested interest in seeing America crash and burn for their Mexican adventure, ditto Spain due to their dabbling in Latin America. That leaves only Austria and Prussia, neither of which cares about the Americas or wants to raise Britain's ire for nothing to gain.
Also, for Russia, Austria and Prussia... Poland is just about to boil over.
As to OP, worst possible terms would be northern Maine, northern New York adjacent to St. Lawrence River, the Great Lakes islands, northern Minnesota along Lake Superior, the Red River Valley Basin in the Dakotas, and Oregon Territory north of the Columbia River. I'd consider that the most extreme version, and it's not the most likely, but depending on how the war goes they might get it. None of it is populated, and it's all stuff that's easy to defend.
There's more New Englanders than there are Canadians, it would be a disaster. The things that Britain wanted were slices of border that they historic claims to or provided strategic depth, not huge chunks of heavily populated territory.CSA gets the border states who still had slavery but sided with the Union. UK gets New England states and the Oregon Territory. Long term effect is that the USA is crippled by the war and collapses into several different smaller countries.
I expect the worst thing Britain could do would be continued support for the Confederacy and hostility towards the Union, rather than any territorial gains it's likely to enforce. Having large, hostile, well-armed powers to both north and south would be a severe constraint, and I expect that conciliating one or the other would be the Union's top diplomatic priority in the post-war years. (They could look for allies against Britain and go in for a round two, I suppose, but given that all the other great powers are on the other side of an ocean and the 1860s is peak Rule Britannia era, I don't think they'd be of much help.)
Why? Britain and America still have an enormous trading relationship, shared history and common language. Britain isn't being vindictive and probably normalized the relationship ASAP while blaming everything on the Republican administration for launching itself into a war it wasn't prepared for.You'd likely see a Union that has French post Franco-Prussian war levels of anger, and WWI they go for it. Likely some sort of secret treaty with Germany, and Prussian influence in the US massively increases.
Why though? If Britain doesn't seek territory what's there to be mad about?You'd likely see a Union that has French post Franco-Prussian war levels of anger, and WWI they go for it. Likely some sort of secret treaty with Germany, and Prussian influence in the US massively increases.
Exactly, and British rhetoric will be pretty common sense. "Hey jolly chap, we were just aiding some fellows in declaring their own independence, same as you did less than a hundred years ago. What's the harm in that?" Pretty hard to argue against that when it was the basis for the creation of the United States.Why? Britain and America still have an enormous trading relationship, shared history and common language. Britain isn't being vindictive and probably normalized the relationship ASAP while blaming everything on the Republican administration for launching itself into a war it wasn't prepared for.
Nations don't just become perpetual enemies for kicks. Britain and France fought against each other for like two decades straight during the Napoleonic Wars and then fought the Russians during Crimea fifty years later.