Answer:The Congress shall have Power To lay and collect Taxes, Duties, Imposts and Excises, to pay the Debts and provide for the common Defence and general Welfare of the United States; but all Duties, Imposts and Excises shall be uniform throughout the United States; ArtI.
Even if they had, the combined bombers of the UK and US would problably be enough to still win the war, and the fighters would problably take them all down, adding to the Anti Aircraft.
