Answer:
...
Step-by-step explanation:
The Second World War was the most destructive conflict in human history. Years of international tension and aggressive expansion by Fascist Italy and Nazi Germany culminated in the German invasion of Poland on 1 September 1939. Britain and France declared war on Germany two days later.
The decisions that led to war reflected the ambitions, rivalries, fears and anxieties that developed in the two decades that followed the end of the First World War. The European powers were willing to go to war to extend or protect what each nation saw - in dramatically different ways - as matters of vital interest, great power status, international prestige, and national survival.