Answer:
Treaty of Versailles
Step-by-step explanation:
Many historians say that the seeds of animosity that will light the fire to World War II began with the impact of the "Treaty of Versailles."
According to many historians, it was believed that the Treaty of Versailles has a reverberating effect that led to so much instability in Europe. Eventually, this instability led to world war 2.
The Treaty of Versailles made Germany and the Soviet Union lost many territories, and also, made Germany pay compensation fees which in turn led to poor economic outcomes in the region.