The United States entered World War I in 1917 because Germany was violating one of our foreign policy goals. What goal was
being violated? I

The U.S. entered World War I because Germany embarked on a deadly gamble. Germany sank many American merchant ships around the British Isles which prompted the American entry into the war. Rochester political scientist Hein Goemans answers the question why Germany was willing to risk American entry into the war. Woodrow Wilson did not want war.

Explanation:

what are the issues?

porter is writing economic history because he is focusing on the cost of developing vaccines.