This document provides instruction and context for learning about why the League of Nations failed to achieve its aims during the 1930s. It discusses key events like the Abyssinia Crisis and Manchuria Crisis, and has students analyze similarities and differences between these crises. It also addresses why disarmament failed, who was to blame, and where a different approach may have led to success. Students are tasked with timelines, diagrams, and assessments of the League's performance to explore reasons for its failures and evaluate if it was ultimately a success or not.