U.S. History pop-up cases are short, one-page scenarios based on foreign policy issues in U.S. history. Use one of the cases to spark discussion and put your students in the shoes of policymakers. This case asks students to consider the following 1917 scenario: British intelligence has decoded a secret German telegram to Mexico that proposes an alliance against the United States and shares Germany’s plans to resume submarine warfare against U.S. shipping in the coming month. How should the United States respond?

The Roadmap
Model Diplomacy
