DQ The "Inter-War" Period

Address the following questions in a paragraph style discussion post:

1. How do the events of this period, referred to as the "inter-war" period, demonstrate that perhaps as historians such as Robert Gerwarth argue, World War I never truly ended?
2. That the conflicts and tensions were unsolved, and that this essentially led to World War II?
3. What people, events, and ideas during this approximately two decade period show evidence of this?