Possible results of a German victory at the Battle of Britain

There is much speculation on the Possible results of a German victory at the Battle of Britain including how the war might have progressed if the Germans had achieved their objective of suppressing the British air defences. The Battle of Britain (German: Luftschlacht um England or Luftschlacht um Großbritannien, literally "Air battle for England" or "Air battle for Great Britain") is the name given to the Second World War air campaign waged by the German Air Force (Luftwaffe) against the United Kingdom during the summer and autumn of 1940. The objective of the campaign was to gain air superiority over the Royal Air Force (RAF), especially Fighter Command.

The Battle of Britain was the first major campaign to be fought entirely by air forces, and was also the largest and most sustained aerial bombing campaign to that date. From July 1940, coastal shipping convoys and shipping centres, such as Portsmouth, were the main targets; one month later the Luftwaffe shifted its attacks to RAF airfields and infrastructure. As the battle progressed the Luftwaffe also targeted aircraft factories and ground infrastructure. Eventually the Luftwaffe resorted to attacking areas of political significance and using terror bombing strategy.

The failure of Germany to achieve its objectives of destroying Britain's air defences, or forcing Britain to negotiate an armistice or an outright surrender, is considered its first major defeat and a crucial turning point in the Second World War. By preventing Germany from gaining air superiority, the battle ended the threat that Hitler would launch Operation Sea Lion, a proposed amphibious and airborne invasion of Britain.

German objectives
On 16 July Hitler ordered the preparation of a plan to invade Britain; he also hoped that news of the preparations would frighten Britain into peace negotiations. "Directive No. 16; On the Preparation of a Landing Operation against England" read, in part, as follows:

"Since England, despite its militarily hopeless situation, still has not shown any signs of being prepared to negotiate, I have decided to prepare a landing operation against England and, if necessary, carry it out. The objective of this operation is to eliminate the English home country as a base for the continuation of the war against Germany…

2) Included in these preparations is the bringing about of those preconditions which make a landing in England possible;

a) The English air force must have been beaten down to such an extent morally and in fact that it can no longer muster any power of attack worth mentioning against the German crossing. (italics added)"

Invasion attempted
The great majority of military historians believe Operation Sea Lion could not have succeeded. Kenneth Macksey asserts it would have only been possible if the Royal Navy had refrained from large-scale intervention and the Germans had assaulted in July 1940 (although Macksey conceded they were unprepared at that time), while others such as Peter Fleming, Derek Robinson and Stephen Bungay believe the operation would have most likely resulted in a disaster for the Germans. Len Deighton and some other writers have called the German amphibious plans a "Dunkirk in reverse". Robinson argues that the massive superiority of the Royal Navy over the Kriegsmarine would have made Sea Lion a disaster.

Invasion not attempted
Some historians believe that Hitler did not envisage actually carrying out his invasion plans but intended to use the defeat of the RAF and threat of invasion to bring Britain to the negotiating table.

Fiction
A fictional Axis (or German) victory in World War II is a common concept of alternate history. World War II is one of the two most popular points of divergence for the English language alternative history fiction (the other being the American Civil War). Such writings express ideas of what the world would be like had the Axis powers of Germany, Italy and Japan won World War II.