What would you argue were the reasons the United entered WWI? (At least 5 sentences)

The United States joined World War One in April 1917. However, just under 3 years earlier, in August, 1914 the United States declared its neutrality in the war then engulfing Europe. President Woodrow Wilson, reflecting the views of much of the nation, announced that his country would be “impartial in thought as well as in action”. This stance soon came under pressure, as the impact of events across the Atlantic were felt in the US. By 1917 isolation had become untenable. In April, Wilson sought the approval of Congress to go to war. Several key factors played a part in this change of course.

True,  spain conquered the incas and the aztecs for their gold and silver.