If you achieve nothing else by getting ships into the Sea of Marmara, you achieve putting the only two munitions factories in the Ottoman Empire within gun range.
A salvo later and you just wait for the Ottomans to be reduced to rock throwing and sticks.
In the grander strategic terms the...
Britain isn't Mexico.
Will the settlers try it against Britain?
Could they succeed on their own?
Would the US be willing to go to war with Britain over it?
Actually the French more or less proposed exactly that, there is even a line of thought that the French wanted such a conclusion so as to poison future relations between Britain and the US.
Giving up the old northwest also wasn't popular in Parliament. In order to get away with the treaty...
Bit of a bigger area to cover and somewhat more difficult to go and burn houses down and dump them at the border when they are your people in your country. Britain was able to remove the French from the maritime province after all.
You don't take the parts with them already in would be my advice.
Beyond that anybody illegally entering can be shoved off the land by the British Army or left to the tender mercies of the natives, although that of course could cause PR issues.
It would have to be a British protectorate. In which case they would have to worry about orderly Canadian settlement taking their land off them instead.
Britain actually "captured" Fort Astoria, after it had already been sold to the North West Company, and thus handed it back because of Ghent, sort of.
So if the Northwest company is on the ball I imagine the final disposition of this area might be dealt with in the ATL Treaty of Ghent.
After the British had seen off the American offensive Prevost was informed he should pursue the "restoration of Detroit and the whole of the Michigan country to the Indians" and "the maintenance of Fort Niagara and as much adjacent territory as is deemed necessary".
The occupation of Eastern...
I believe you are misunderstanding me old bean. I stated it was about what was currently in the water, I just find the idea of the two power standard being met in the middle of ww2 amusing even if it is a temporary aberration lasting for a couple of months.
Oh they can out build the RN, but based upon what is currently in the water and usable the RN would seem to have the most available capital ship bang by a margin.