This educational video examines the collapse of international peace in the 1930s through the aggressive expansionist policies of Japan, Italy, and Germany. It connects the aftermath of World War I and the Great Depression to the rise of militaristic regimes that sought national glory through territorial conquest. The narrative highlights the inability of the League of Nations and Western powers to effectively stop these aggressions, setting the stage for World War II. The content covers three specific case studies: Japan’s invasion of Manchuria and China, Italy’s invasion of Ethiopia, and Hitler’s defiance of the Treaty of Versailles culminating in the occupation of the Rhineland. It introduces key historical figures like Emperor Haile Selassie, Benito Mussolini, and Adolf Hitler, while explaining critical concepts such as "appeasement" and "sanctions." For educators, this video serves as an excellent overview of the geopolitical causes of WWII. It structures the complex history into three distinct segments, making it easy to compare and contrast the actions of different Axis powers. The video includes built-in pause points with guiding questions, making it ready-to-use for checking student understanding during a lecture or independent study session.