AHC: The US loses a state to a foreign power

With as late a POD as possible (I'm in this forum because I don't think that anything so late as 1900 is possible without great big bats. Losing Hawaii before statehood doesn't count, and I'm not interested in extreme Axis wanks either), have the United States sign a peace treaty that cedes control of the entireity of at least one state to another nation which cannot have ever itself been part of the US. (I.E. no loses to the Confederacy, even in follow-up USA/CSA wars, count for this challenge.)
 
The Trent Affair turns hot. Britain invades most of the West Coast stopping the California gold that was helping pay for the war. After a year or so the bankrupt US surrenders.
In the peace treaty the US refuses to cede California, but must give Britain Oregon and the Washington territory. These states eventually become part of Canada.
 

Thande

Donor
maybe Britain does better in the war of 1812 and takes Maine

Maine wasn't a state until 1820. At the time of the War of 1812 it was just a dependent territory of Massachussetts.

I can't see Britain taking an entire state at any point after statehood because it would probably be far more difficult to govern than stripping bits off of several states and turning them into a new entity.

American statehood admission policy is, probably by accident, structured in such a way that territories don't become states until after it's realistic for a foreign power to conquer them (either due to sheer lack of ability or because it would be too hard to rule over). For example, even if Mexico won the Mexican-American War decisively enough to actually take land from the USA, it would all be territories because there weren't any states that far west yet.
 
Britain does better in the Revolutionary War and some state - say, Georgia - is never granted independence.

After the Revolution, I agree with Thande: it wouldn't work, absent extreme enemy-of-America-wanks or ASB's.
 
if GB kicks some serious ass in 1812, possibly new hampshire, vermont, and maine (i know not a state yet...) you could also have new england secede from the US, but thats not losing to a foreign entity.

mexico could take back texas.

and if jefferson never bought louisiana, and the french held it, that leaves the door open for a lot of bad relations on both ends of the mississippi
 

Lusitania

Donor
Do you mean a state after it has been admisted into the Union or territory, such as part of a state or part or an entire territory.
 
Do you mean a state after it has been admisted into the Union or territory, such as part of a state or part or an entire territory.

An entire state (or multiple same, or a state and additional land in territories or partial states.) Something that would require a new flag with fewer stars and the removal of seats in the Senate. [And quite probably a constitutional amendment; the constitution as written is not particularly adaptable to the idea of losing states.]

Note that having the US become more aggressive in annexations and granting statehood than in OTL before the losing war in question would still qualify, by the way.
 
Had say, Nova Scotia / Quebec been admitted to the Union but lost in some disastrous War of 1812 it would fufill your criteria.
 
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