Balls. Every one was settled by negotiation.
Yes. Negotiations settled in favour of the USA. Go look up the Alaskan border dispute. It was supposed to be settled by arbitration. But the USA then decided that arbitration or not, they would go to war to assert their claims if necessary and they meant it. What did Britain do? They told the arbitrator to settle in favour of the USA.
That's what civilised countries do.
Please. Britain and the USA were not civilized. They are only civilized if they can get what they want without having to use force. Ask the Asian and African peoples if 19th century Britain was civilized in looking for compromises.
I only have to look at the Oregon claims to see a compromise:
Some compromise. The USA basically got what they wanted. The 54th parrellel was not important to the USA; it would have been just icing on the cake. They principally wanted access to the Pacific and got it by getting California and Oregon.
Britain got nothing out of this "compromise". They couldn't even insist on keeping the Columbia river within British territory. The Columbia River goes north well deep into British territory. It is like the St. Lawrence river but in the west and going north. The USA didn't need it and could easily have given this territory to Britain while still having access to the Pacific. But Britain could't even insist on that. The mouth and part of the Columbia river was given to the USA.
The USA got, by far, the better deal out of this "compromise".
Sure. I remember differently.