What is america's role in ww1 diplomacy

American neutrality

The president insisted that all government actions be neutral, and that the belligerents must respect that neutrality according to the norms of international law.

The Americans helped the British Empire, French and Portuguese forces defeat and turn back the powerful final German offensive, also the Americans played a role in the Allied final offensive

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in mcculloch v. maryland (1819) the supreme court ruled that congress had implied powers under the necessary and proper clause of article i, section 8 of the constitution to create the second bank of the united states and that the state of maryland lacked the power to tax the bank.

gibbons v. ogden, (1824), was a landmark decision in which the supreme court of the united states held that the power to regulate interstate commerce, granted to congress by the commerce clause of the united states constitution, encompassed the power to regulate navigation.