Step-by-step explanation:
Central Europe and Eastern Europe experienced ethnic tensions in the early 1900s mainly because many regional groups wanted to establish their own regional nation states. Central and Europe nations lived serious moments of ethnic tension in the early 1900s that produced many conflicts in the region. In the 1900s, an arms race occurred between Germany and Great Britain where these two countries began to compete over the size of their navies. There were territorial conflict, diplomatic disagreements, and economic rivalries between the nations in Europe because of the tension of growing nationalism.