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July–October 1940General source · 2 sourcesWell documented

The Battle of Britain

On the timeline · around July–October 1940 · The Battle of Britain19401941

What happened

Germany's Luftwaffe fought to win air superiority over southern England in preparation for an invasion. RAF Fighter Command, flying Hurricanes and Spitfires and aided by a pioneering radar-based air-defense network, denied the Germans control of the skies. Hitler ultimately postponed the invasion.

Why it matters

It was the first major campaign fought entirely in the air, and Britain's victory ended the immediate threat of a German invasion of the British Isles.

Sources