On 10 July 1940, the German Luftwaffe began bombing Britain, marking the start of the Battle of Britain.
Bombing continued over major UK ports and cities for 3 months.
In Britain as early as June 1940, the atmosphere was causing concern. In addition to the defeat in France, the British failed in their attempt to protect Norway from a German invasion. This led to the resignation of Neville Chamberlain as Prime Minister and the election of Winston Churchill.
Prime Minister Winston Churchill made many memorable speeches during the Second World War, but one of his famous lines was his famous speech in which he used the words "Never in the field of human conflict was so much owed by so many to so few" referring to the Allied pilots who fought against the German pilots in the Battle of Britain.
The primary objective of the German forces was to destroy Britain's air defenses, inflict damage on the country's industry and infrastructure, undermine the morale of the population, and thereby force Britain to surrender or agree to a negotiated peace settlement. In the eventuality of achieving superiority in the air campaign, Hitler planned Operation Sea Lion. - invasion of Great Britain by sea and air.
However, the RAF managed to repel the attacks and in the end the Luftwaffe did not break through their defences. Losses of aircraft and aviators on the German side were significantly greater and “Sea Lion” is postponed. Thus, the first major military campaign led entirely by air forces ended in failure for the Third Reich and is considered one of the turning points in the war.