Permanent historical factsheet

Operation Sea Lion

Germany · Warfare / World War, 2nd. Chronological records rendered directly from the World History Database.

28Records
1940Date range
8Named people
2Places

Chronological records

1940

Adolf Hitler20 June 1940

Warfare / World War, 2nd

Plans for the defeat of Britain at the Fuhrer Conference

Erich Raeder11 July 1940

Obersalzburg · Warfare / World War, 2nd

Military chiefs meet to discuss the invasion of Britain but Raeder advises against

Adolf Hitler16 July 1940

Warfare / World War, 2nd

Says invasion should commence by mid August but the services revise this to 15th Sept

Adolf Hitler21 July 1940

Warfare / World War, 2nd

Sets the latest date for "Sea Lion" as 15th September 1941

Adolf Hitler25 July 1940

Warfare / World War, 2nd

Plans to land 90,000 men in the 1st 6 days of the invasion of Britain

Erich Raeder30 July 1940

Warfare / World War, 2nd

Sets 20-26 September as the earliest date on which the Navy can be ready

Karl Doenitz1 August 1940

Warfare / World War, 2nd

Believes air superiority was "not enough". Donitz later stated, "we possessed neither control of the air or the sea; nor were we in any position to gain it"

Adolf Hitler1 August 1940

Warfare / World War, 2nd

Issues a directive for launching Operation Sea Lion

Wilhelm Keitel1 August 1940

Warfare / World War, 2nd

Signs jointly with Hitler the directive for authorizing Operation Sea Lion

Erich Raeder1 August 1940

Warfare / World War, 2nd

Raeder believes that air superiority might make a successful landing possible although it would be a risky operation and required "absolute mastery over the Channel by our air forces"

Franz von Halder7 August 1940

Warfare / World War, 2nd

Rejects the Navys proposals for carrying the Army to England as "suicide"

Albrecht Kesselring20 August 1940

Pas de Calais · Warfare / World War, 2nd

Kesselring is ordered to concentrate his forces in the Pas de Calais

Adolf Hitler27 August 1940

Warfare / World War, 2nd

Says victory is dependent on vicory in the Air. Issues a directive for Naval & Army operations for the invasion of England

Karl Rudolf von Rundstedt27 August 1940

Warfare / World War, 2nd

Given command of operations to invade England, subject to victory in the air

Adolf Hitler30 August 1940

Warfare / World War, 2nd

At the request of the Services the invasion of England is postponed to 21st September

Adolf Hitler3 September 1940

Warfare / World War, 2nd

Issues a directive with the decision to invade England be taken by 11th September

Albrecht Kesselring6 September 1940

Warfare / World War, 2nd

Goering arrives at Kesselrings HQ to take command of Operation Sea Lion

Adolf Hitler11 September 1940

Warfare / World War, 2nd

The 11th Septmber deadline is passed & the invasion of England is cancelled. Postpones Operation Sea Lion by 3 days to the 24th September

Adolf Hitler14 September 1940

Warfare / World War, 2nd

Postpones Operation Sea Lion awaiting orders to be issued September 17. Postpones Operation Sea Lion

Erich Raeder14 September 1940

Warfare / World War, 2nd

Says Germany does not enough air superiority over England to launch Sea Lion

Herman Goering15 September 1940

Warfare / World War, 2nd

The Operation begins on Adlertag ("Eagle Day") by German forces, elimination of British air cover had been set as one of the prerequisites for Sea Lion - the amphibious assault of Britain. Initial Luftwaffe estimates are that it will take four days to defeat the RAF Fighter Command in southern England. Believing the RAF is broken Goering bombs London, 1,300 sorties are flown

Adolf Hitler15 September 1940

Warfare / World War, 2nd

Suspends operation Sea Lion scheduled for 27 September

Adolf Hitler17 September 1940

Warfare / World War, 2nd

Operation Sea Lion is postponed indefinitley

Adolf Hitler19 September 1940

Warfare / World War, 2nd

Invasion fleets in the Channel & North Sea are dispersed to prevent damage by the RAF

Adolf Hitler12 October 1940

Warfare / World War, 2nd

The British invasion forces are released. After pressure from the Army & the Navy calls off Operation Sea Lion until the Spring

Erich RaederOctober 1940

Warfare / World War, 2nd

Preparations are deferred to the Spring but only to keep pressure on the British. Operation Sea Lion is called off

Adolf Hitler1940

Warfare / World War, 2nd

Britain will not allow Hitler a free hand in the east & will not sue for peace

Albrecht Kesselring1940

Warfare / World War, 2nd

Sets up a wirless intercept system to hear RAF messages

Names involved

Adolf HitlerAlbrecht KesselringErich RaederFranz von HalderHerman GoeringKarl DoenitzKarl Rudolf von RundstedtWilhelm Keitel

Provenance

This factsheet is generated from stored World History Database records matching the country, broad category, detailed category and exact Event value shown above. Duplicate display records are collapsed; database wording is otherwise preserved. Source provenance varies by record, so formal academic citation should be checked against the relevant primary source, archive or specialist historical reference.