This document provides background information on two cases regarding why the U.S. entered World War I. Case 1 discusses Germany attacking merchant and passenger ships in the Atlantic in violation of agreements, resulting in American deaths. Various perspectives are given from a president, naval officer, merchant, and widow. Case 2 discusses the implementation of the draft in the U.S. to expand its army in response to demands in Europe. Perspectives are included from a draftee, African American soldier, mother of a draftee, and female factory worker replacing drafted men.