The thesis is about the United Kingdom'struggles against Nazi Germany. The thesis contains various ways and methods that were used for the defense of the United Kingdom. As a result, it does not focus on military actions only. The reader gets an insight into technology, the economy of the country, geographical advantages, and Winston Churchill as a political leader, as well as many other factors that played a role in the successful defense. These include the morale of the people and Churchill's speeches and determination too. Moreover, the successful evacuation at Dunkirk is also mentioned, without which the Battle of Britain could have had a way more different outcome.