B i would assume as it was the us army that helped significantly with the d day invasion as the us military were advanced in training
It was caused by the sharp rise in the price of opium was seized upon by some of the Cohong trading houses and smugglers.
They objected to the taxes on British goods because the Pilgrims had no say inn how the British Crown was going to rule the taxes. Its in contrast to the principle named 'Taxation without Representation'.