The unit culminates in a structured inquiry seminar where students synthesize all evidence to answer the core unit question.

Students decode the Zimmermann Telegram and analyze how the threat of a Mexican-German alliance pushed the US closer to war.

An investigation into the impact of unrestricted submarine warfare and the sinking of the Lusitania on US public opinion and economic interests.

Students explore the initial US stance of neutrality and the complex M.A.I.N. causes of the war in Europe, establishing the baseline for the inquiry.