The Battle of Britain was not an isolated event. It was the culmination of a series of escalating tensions, military buildups, and ideological confrontations that had been brewing for years. By 1939, Europe was on the brink of war. The world watched as Adolf Hitler's ambitions for territorial expansion grew, and the Nazi regime began implementing its aggressive policies across Europe.

The rise of Nazi Germany under Hitler was a response to the humiliation the country had suffered after World War I. With the Treaty of Versailles in 1919, Germany was burdened with harsh reparations, which led to economic instability and social unrest. In this environment, Hitler's National Socialist party capitalized on the public's desire for national renewal. He began rearming Germany in the early 1930s, violating the treaty's restrictions and asserting military strength across Europe.

By the mid-1930s, Britain and France found themselves at odds with Germany's expanding influence. In 1938, Hitler annexed Austria and then demanded control over Czechoslovakia's Sudetenland. When the Munich Agreement failed to halt his expansionist ambitions, Britain began to realize that appeasement would not work. The threat of war was no longer theoretical; it was imminent.