What if Britain sent 90000 troops to invade maine from canada in 1864 to help confederates

It is highly unlikely that Britain would have sent 90000 troops to invade Maine from Canada to help the Confederates in 1864. By this point in the American Civil War, Britain had already declared neutrality and had no interest in getting directly involved in the conflict.

Furthermore, invading Maine would have been a difficult and costly endeavor for Britain. The region was heavily defended by Union troops, and the British would have had to contend with difficult terrain, harsh weather, and a hostile local population.

Even if the British had managed to successfully invade Maine, it is unclear how much of an impact it would have had on the outcome of the war. The Confederates were already struggling by this point, and it is unlikely that a British invasion of Maine would have dramatically shifted the balance of power in their favor.