Permanent historical factsheet

Operation Overlord

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

67Records
1941–1944Date range
22Named people
21Places

Chronological records

1941

Winston Leonard Spencer Churchill13 August 1941

Quebec · Warfare / World War, 2nd

13 Aug-23 August, the Allies agree to mount an invasion called "Overlord" in May 44

1942

Bernard PagetJanuary 1942

Normandy · Warfare / World War, 2nd

Studies plans written by the British & USA Combined-Chiefs of Staff

Winston Leonard Spencer Churchill1942

Warfare / World War, 2nd

Churchill unofficially informs the Soviets in a memorandum handed to Soviet Foreign Secretary Vyacheslav Molotov that the resources necessary for an invasion were lacking in 1942

Winston Leonard Spencer Churchill1942

Warfare / World War, 2nd

In a joint statement with Soviet Union Communist Party General Secretary Joseph Stalin and United States President Franklin D. Roosevelt, Churchill had announces a "full understanding" with regard to the urgent tasks of creating a Second Front in Europe.

Winston Leonard Spencer Churchill1942

Warfare / World War, 2nd

The planning process was started in earnest after the Casablanca and Tehran Conferences with the appointment of British Lieutenant General Frederick E. Morgan as Chief of Staff to the Supreme Allied Commander.

Winston Leonard Spencer Churchill1942

Warfare / World War, 2nd

Two preliminary proposals were drawn up: Operation Sledgehammer, for an invasion in 1942, and Operation Roundup, for a larger attack in 1943, which was adopted and became Operation Overlord, although it was delayed until 1944.

Frederick Morgan1942

Warfare / World War, 2nd

The planning process was started in earnest after the Casablanca and Tehran Conferences with the appointment of British Lieutenant General Frederick E. Morgan as Chief of Staff to the Supreme Allied Commander

1943

Winston Leonard Spencer Churchill27 May 1943

Washington · Warfare / World War, 2nd

Churchill & Roosevelt meet in Washington where they agree a cross-Channel invasion (Operation Overlord) to be provisionally be launched on 1 May 1944

Trafford Leigh-Mallory3 June 1943

Urville Hague · Warfare / World War, 2nd

The German radio intercept station is bombed & "wiped off the map"

Trafford Leigh-Mallory7 June 1943

Bordeaux · Warfare / World War, 2nd

The RAF bombs a German Air Force base about to bomb the Overlord Channel fleet

Winston Leonard Spencer Churchill17 August 1943

Quebec · Warfare / World War, 2nd

Churchill & Roosevelt meet in Quebec, Canada to further discuss Overlord timetable, planning

Winston Leonard Spencer ChurchillAugust 1943

Quebec · Warfare / World War, 2nd

The initial draft of the COSSAC plan for Operation Overlord is accepted at the Quebec Conference in August 1943, but no supreme commander was appointed for several months

Winston Leonard Spencer Churchill24 November 1943

Cairo · Warfare / World War, 2nd

Confirms British committment to Overlord at the Cairo Conference

Winston Leonard Spencer ChurchillNovember 1943

Tehran · Warfare / World War, 2nd

Agrees to mount Overlord & send a diversionary force to the south of France in May 1944

Bernard Law Montgomery Alamein, 1stNovember 1943

Normandy · Warfare / World War, 2nd

Given command of the assault phase for Overlord on the ground

Winston Leonard Spencer Churchill6 December 1943

Cairo · Warfare / World War, 2nd

Churchill & Roosevelt agree Gen Eisenhower will command Allied forces for the planned invasion of Europe, Eisenhowers appointment as Supreme Commander, Allied Expeditionary Force, publicly announced by Roosevelt

Winston Leonard Spencer Churchill31 December 1943

Marrakech · Warfare / World War, 2nd

Eisenhower & Montgomerry insist that the scale of the invasion be expanded, to prevent the invaders being restricted to a narrow beachhead, with insufficient room to land follow-up formations, delaying Overlord to June. Eisenhower & Montgomerry both first see the COSSAC plan on 31 December 1943 at Marrakech in Morroco, in a conference with Winston Churchill

Bernard Law Montgomery Alamein, 1st31 December 1943

Marrakech · Warfare / World War, 2nd

47 divisions are committed to the Battle of Normandy: 19 British, 5 Canadian, 21 US & 1 Free French

Winston Leonard Spencer ChurchillDecember 1943

Warfare / World War, 2nd

Gets some LCTs from Burma against the Japanese for use in Operation Overlord

Trafford Leigh-Mallory1943

London · Warfare / World War, 2nd

Appointed to plan British & US tactical air forces for Operation Overlord

1944

Bernard Law Montgomery Alamein, 1st15 January 1944

Normandy · Warfare / World War, 2nd

Montgomerys plans for D-Day are approved by the Allies

Bernard Law Montgomery Alamein, 1stJanuary 1944

Warfare / World War, 2nd

Succesfully argues the case for more troops & a broader landing area

Bernard Law Montgomery Alamein, 1st7 April 1944

Warfare / World War, 2nd

Montgomery presents his strategy for the invasion at St Pauls School, a ninety day battle, ending when all the forces reach the Seine, pivoting on an Allied-held Caen, with British and Canadian armies forming a shoulder & US armies wheeling right

Winston Leonard Spencer Churchill15 May 1944

Warfare / World War, 2nd

Montgomerry presents Overlord plans to senior commanders, the King, Smuts & Churchill

Bernard Law Montgomery Alamein, 1st15 May 1944

Warfare / World War, 2nd

The Americans are assigned Utah and Omaha, the British Gold and Sword, and the Canadians Juno Beach.

Bernard Law Montgomery Alamein, 1st15 May 1944

London · Warfare / World War, 2nd

Presents the final plan to senior commanders, the King, Smuts & Churchill at St Pauls. Expresses his belief that that Allied tanks will reach Falaise on D-Day

Bernard Law Montgomery Alamein, 1st15 May 1944

London · Warfare / World War, 2nd

Final conference at Montgomerys HQ in St Pauls School

Winston Leonard Spencer Churchill28 May 1944

Warfare / World War, 2nd

Subordinate commanders are informed D-Day will be 5th June

Winston Leonard Spencer Churchill5 June 1944

Warfare / World War, 2nd

Announces an imminent Allied assault on the coast of France in the Commons

Winston Leonard Spencer Churchill5 June 1944

Normandy · Warfare / World War, 2nd

The highest tonnage of bombs in one night during the war is dropped by Britain. Dummy parachutists are dropped just east of the intended landing area. 176,000 men & 20,000 vehicles are to be landed in 2 days. 1,000 British bombers strike 10 German gun batteries, 5,000 tons of bombs are dropped

John Howard5 June 1944

Benouville · Warfare / World War, 2nd

Commands infantryman who land by glider & capture 2 bridges codenamed Pegasus & Horsa

Danny Brotheridge6 June 1944

Pegasus Bridge · Warfare / World War, 2nd

Leads the infantry capture of 2 bridges codenamed Pegasus & Horsa. 1st Allied death in Normandy

Gerard Bucknall6 June 1944

Normandy · Warfare / World War, 2nd

Commands the British 30th Corps on Gold beach

Winston Leonard Spencer Churchill6 June 1944

Caen · Warfare / World War, 2nd

1st day of the bombing of Caen

Winston Leonard Spencer Churchill6 June 1944

Normandy · Warfare / World War, 2nd

To the east, Rommels nightmare had been realised, a continuous British-Canadian beachhead, 20km (12 miles) across and up to 10km (six miles) deep. By midnight neither Bayeux nor Port-en-Bessin had been taken, the depleted American force was several kilometres short of Port-en-Bessin but the French Resistance had taken over Bayeux

John Tredinnick Crocker6 June 1944

Caen · Warfare / World War, 2nd

Crocker's I Corps directed the British and Canadian assault formations advancing toward Caen.

Miles Christopher Dempsey6 June 1944

Caen · Warfare / World War, 2nd

Dempsey commanded the British Second Army landing east of Bayeux and advancing toward Caen.

Edward Dunn6 June 1944

St Marcouf · Warfare / World War, 2nd

Captures the Islands of St Marcouf off Utah beach

Richard Gale6 June 1944

Benouville · Warfare / World War, 2nd

Parachutes behind enemy lines & captures Benouville, including Pegasus Bridge

Richard Gale6 June 1944

Hermanville · Warfare / World War, 2nd

At about 9:30 Hermanville is captured

Richard Gale6 June 1944

Ranville · Warfare / World War, 2nd

Sets up an HQ at Ranville

James Hill6 June 1944

Merville · Warfare / World War, 2nd

Parachutes behind enemy lines & helps disable gun emplacements at Merville

Bernard Law Montgomery Alamein, 1st6 June 1944

Caen · Warfare / World War, 2nd

Montgomery directed the Allied ground campaign and treated Caen as the principal objective of the British Second Army.

Bernard Law Montgomery Alamein, 1st6 June 1944

Arromanches · Warfare / World War, 2nd

Royal Marine Commandos land on Gold Beach & capture Arromanches

Bernard Law Montgomery Alamein, 1st6 June 1944

Bayeux · Warfare / World War, 2nd

The British capture Bayeaux

Bernard Law Montgomery Alamein, 1st6 June 1944

Caen · Warfare / World War, 2nd

The British 3rd Division fails to capture Caen

Bernard Law Montgomery Alamein, 1st6 June 1944

Normandy · Warfare / World War, 2nd

A major objective, was still in German hands by the end of D-Day, and would remain so until the battle for Caen, 8 August

Bernard Law Montgomery Alamein, 1st6 June 1944

Normandy · Warfare / World War, 2nd

Caen. Commander of all ground forces for Operation Overlord. By the end of the day the Allies land 130,000 men & 22,000 parachutists.

Bernard Law Montgomery Alamein, 1st6 June 1944

Normandy · Warfare / World War, 2nd

On Sword Beach the regular British infantry came ashore with light casualties they advance about 8 kilometres (5.0 mi) by the end of the day but failed to make some of the deliberately ambitious targets set by Montgomery in particular

Bernard Law Montgomery Alamein, 1st6 June 1944

Normandy · Warfare / World War, 2nd

The Allies lose 9,500 killed or wounded.

Terence Otway6 June 1944

Merville · Warfare / World War, 2nd

Parachutes behind enemy lines disabling gun emplacements threatening Sword Beach

Nigel Poett6 June 1944

Pegasus Bridge · Warfare / World War, 2nd

Parachutes behind enemy lines & helps secure Pegasus Bridge

Bertram Ramsay6 June 1944

Normandy · Warfare / World War, 2nd

Commands 137 warships, 4,000 landing craft & 2,000 support ships

Thomas Gordon Rennie6 June 1944

Caen · Warfare / World War, 2nd

Rennie's division landed on Sword Beach with orders to advance rapidly toward Caen.

Bernard Law Montgomery Alamein, 1st11 June 1944

Normandy · Warfare / World War, 2nd

Manages to land 16 Divisions ashore facing 14 enemy Divisions

Bernard Law Montgomery Alamein, 1st23 June 1944

River Odon · Warfare / World War, 2nd

The Allies gain a bridgehead over the River Odon near Caen

Bernard Law Montgomery Alamein, 1st29 June 1944

Hill 112 · Warfare / World War, 2nd

The Allies capture Hill 112 but Dempsey withdraws & the Germans recapture it

Frederick BrowningJune 1944

Normandy · Warfare / World War, 2nd

Commands the 1st Airbourne Division during the Normandy landings

Winston Leonard Spencer Churchill4 August 1944

Marsailles · Warfare / World War, 2nd

Wants Eisenhower to transfer "D-Day" from Marsailles to Brest, Eisenhower refuses

Bernard Law Montgomery Alamein, 1st4 August 1944

Normandy · Warfare / World War, 2nd

Endorses Bradleys order for Patton to clear Brittany with "minimum forces"

Winston Leonard Spencer Churchill9 August 1944

Marsailles · Warfare / World War, 2nd

Fails to persuade Eisenhower to transfer D-Day from Marsailles to Brest

Winston Leonard Spencer Churchill15 August 1944

Warfare / World War, 2nd

Watches the D-Day landings & wires Eisenhower saying how succesful they are

Arthur Conningham1944

Normandy · Warfare / World War, 2nd

Appointed Commander of the 2nd Tactical Airforce

Miles Dempsey1944

Normandy · Warfare / World War, 2nd

Commands the British Second Army during Operation Overlord

Percy Hobart1944

Normandy · Warfare / World War, 2nd

Given the responsibility of developing ampibious armoured support, "Hobarts funnies"

Trafford Leigh-Mallory1944

Normandy · Warfare / World War, 2nd

Commander in Chief of the Allied airforces for Operation Overlord

Philip Vian1944

Normandy · Warfare / World War, 2nd

Commands the Tactical Forces East during Operation Overlord

Names involved

Arthur ConninghamBernard Law Montgomery Alamein, 1stBernard PagetBertram RamsayDanny BrotheridgeEdward DunnFrederick BrowningFrederick MorganGerard BucknallJames HillJohn HowardJohn Tredinnick CrockerMiles Christopher DempseyMiles DempseyNigel PoettPercy HobartPhilip VianRichard GaleTerence OtwayThomas Gordon RennieTrafford Leigh-MalloryWinston Leonard Spencer Churchill

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.