Operation Overlord
Churchill & Roosevelt meet in Washington where they agree a cross-Channel invasion (Operation Overlord) to be provisionally be launched on 1 May 1944
D-Day and Normandy ยท permanent subject timeline
Planning and execution of the Allied invasion of Normandy. This page combines historical context with 149 matching records drawn directly from the World History Database Normandy archive.
Historical context
Operation Overlord was the Allied plan for the invasion of north-west Europe. Detailed planning accelerated during 1943 and early 1944 under a combined command structure led by Dwight D. Eisenhower, with the assault expanded to five beaches and three airborne divisions.
Overlord opened a major western front against Nazi Germany and created the lodgement from which Allied armies advanced across France. Its success depended on coalition command, deception, air superiority, naval power, logistics and the rapid reinforcement of the beachhead.
World History Database records
The records below are selected from the 455-record D-Day and Normandy archive and rendered as static HTML in chronological order.
Operation Overlord
Churchill & Roosevelt meet in Washington where they agree a cross-Channel invasion (Operation Overlord) to be provisionally be launched on 1 May 1944
Operation Overlord
Churchill & Roosevelt meet in Washington where they agree a cross-Channel invasion (Operation Overlord) to be provisionally be launched on 1 May 1944
Operation Overlord
The German radio intercept station is bombed & "wiped off the map"
Operation Overlord
The RAF bombs a German Air Force base about to bomb the Overlord Channel fleet
Operation Overlord
Morgan & COSSAC advise landong in Normandy within the Bay of the Seine close to Caen
Operation Overlord
Churchill & Roosevelt meet in Quebec, Canada to further discuss Overlord timetable, planning
Operation Overlord
Churchill & Roosevelt meet in Quebec, Canada to further discuss Overlord timetable, planning
Operation Overlord
Commands the US First Army during Operation Overlord
Operation Overlord
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
Operation Overlord
Ordered by the CCS to take "necessary executive action" to implement Overlord
Operation Overlord
The HQ for the 1st US Army opens in England
Operation Overlord
Arrives in England to take command of the First Army
Operation Overlord
Meets Russian representives & confirms the decision at Quebec to launch Overlord
Operation Overlord
Hitler issues Directive No. 51, a plan to deter or prevent an Allied invasion on Germany's western front
Operation Overlord
Confirms British committment to Overlord at the Cairo Conference
Operation Overlord
Field Marshal Rommel begins inspection of Atlantic Wall, Germany's coastal defence system stretching from Norway to the Spanish frontier
Operation Overlord
Agrees to mount Overlord & send a diversionary force to the south of France in May 1944
Operation Overlord
Given command of the assault phase for Overlord on the ground
Operation Overlord
Agreed to mount Overlord & send a diversionary force to the south of France in May 1944
Operation Overlord
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
Operation Overlord
Churchill & Roosevelt agree General Eisenhower will command Allied forces for the invasion of Europe
Operation Overlord
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
Operation Overlord
Directs Commanders to divert as many LCS carriers as possible to Overlord & Anvil
Operation Overlord
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
Operation Overlord
In December 1943, Operation Postage Able used an X-craft to collect suitable data for all of the Normandy beaches. Following Eisenhowers and Montgomerys revisions it is expanded to landings by 5 divisions and airborne descents by 3 divisions, in total, 47 divisions would be committed to the Battle of Normandy: 19 British, 5 Canadian, 21 US & 1 Free French
Operation Overlord
47 divisions are committed to the Battle of Normandy: 19 British, 5 Canadian, 21 US & 1 Free French
Operation Overlord
Gets some LCTs from Burma against the Japanese for use in Operation Overlord
Operation Overlord
Appointed Supreme Allied Commander for Operation Overlord
Operation Overlord
Says that "if they attack int westthat attack will decide the war"
Operation Overlord
Appointed to plan British & US tactical air forces for Operation Overlord
Operation Overlord
Appointed Commander in Chief, Navy for Operation Overlord
Operation Overlord
Prepares a report saying the German Army is not prepared to face an Allied attack
Operation Overlord
The Allies agree the plans for D-Day
Operation Overlord
Montgomerys plans for D-Day are approved by the Allies
Operation Overlord
The directive appointing Eisenhower Supreme Allied Commander for Overlord is issued
Operation Overlord
Arrives in England to assume duties as Supreme Allied Commander of Operation Overlord
Operation Overlord
Succesfully argues the case for more troops & a broader landing area
Operation Overlord
US D-Day beach landing training exercise (Operation Beaver) at Slapton Sands, Devon, demonstrate a dangerous lack of coordination between units
Operation Overlord
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
Operation Overlord
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
Operation Overlord
German torpedo boats nearly discover a mock landing but all 600 soldiers are drowned
Operation Overlord
Montgomerry presents Overlord plans to senior commanders, the King, Smuts & Churchill
Operation Overlord
The US will invade Utah & Omaha beaches, the British Gold & Juno & the Canadians Sword
Operation Overlord
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
Operation Overlord
Final conference at Montgomerys HQ in St Pauls School
Operation Overlord
Montgomerry presents the Overlord plan to Commanders, the King, Smuts & Churchill
Operation Overlord
Subordinate commanders are informed D-Day will be 5th June
Operation Overlord
Cables OKW saying the Allies cannot attack without 4 days good weather
Operation Overlord
The Allied invasion force of 150,000 departs from England on 5,300 ships
Operation Overlord
The weather in the Channel deteriorates & the Allied invasion force is recalled
Operation Overlord
Postpones Operation Overlord, due 5th June, because of bad weather
Operation Overlord
Arrives home hoping to convince Hitler to defend the Cotentin coast
Operation Overlord
3 Airbourne Divisions land behind enemy lines at St Mere-Eglise & Caen
Operation Overlord
Announces an imminent Allied assault on the coast of France in the Commons
Operation Overlord
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
Operation Overlord
176,000 men & 20,000 vehicles are to be landed in 2 days
Operation Overlord
Gives the go ahead for Operation Overlord for 6th June
Operation Overlord
Commands infantryman who land by glider & capture 2 bridges codenamed Pegasus & Horsa
Operation Overlord
Leaves his HQ & returns to Germany, convinced the Allies are not about to invade
Operation Overlord
Lands the 2nd British Army from the river Orme to St-Vaast-La-Hogue
Operation Overlord
The US Army succesfully captrures Omah & Utah beaches
Operation Overlord
Leads the infantry capture of 2 bridges codenamed Pegasus & Horsa. 1st Allied death in Normandy
Operation Overlord
Commands the British 30th Corps on Gold beach
Operation Overlord
1st day of the bombing of Caen
Operation Overlord
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
Operation Overlord
Commands the US 7th Army Corps on Utah beach
Operation Overlord
Crocker's I Corps directed the British and Canadian assault formations advancing toward Caen.
Operation Overlord
Dempsey commanded the British Second Army landing east of Bayeux and advancing toward Caen.
Operation Overlord
Captures the Islands of St Marcouf off Utah beach
Operation Overlord
The Allies land 130,000 men & 22,000 parachutists & lose 9,500 killed or wounded. The Allied landings take place with 487,653 men & 89,728 making it ashore. Plans & commands the Allied capture of Germany from D-Day
Operation Overlord
Parachutes behind enemy lines & captures Benouville, including Pegasus Bridge
Operation Overlord
At about 9:30 Hermanville is captured
Operation Overlord
Sets up an HQ at Ranville
Operation Overlord
Commands the US 5th Army Corps on Omaha beach
Operation Overlord
Parachutes behind enemy lines & helps disable gun emplacements at Merville
Operation Overlord
Keller commanded the Canadian division landing on Juno Beach and advancing toward the Caen-Bayeux road.
Operation Overlord
Major General Rod Keller, the Canadian commander at Juno Beach, reports to General Crerar in England at 10:30, "Beach-head gained. Well on our way to our immediate objectives"
Operation Overlord
Commands the ships of the Western Task force which lands forces on Utah & Omaha
Operation Overlord
Marcks corps stands in the middle of the Allied Normandy landings. Commands the 21st Panzer Division
Operation Overlord
Montgomery directed the Allied ground campaign and treated Caen as the principal objective of the British Second Army.
Operation Overlord
Royal Marine Commandos land on Gold Beach & capture Arromanches
Operation Overlord
The British capture Bayeaux
Operation Overlord
The British 3rd Division fails to capture Caen
Operation Overlord
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
Operation Overlord
Caen. Commander of all ground forces for Operation Overlord. By the end of the day the Allies land 130,000 men & 22,000 parachutists.
Operation Overlord
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
Operation Overlord
The Allies lose 9,500 killed or wounded.
Operation Overlord
Parachutes behind enemy lines disabling gun emplacements threatening Sword Beach
Operation Overlord
Parachutes behind enemy lines & helps secure Pegasus Bridge
Operation Overlord
Commands 137 warships, 4,000 landing craft & 2,000 support ships
Operation Overlord
Rennie's division landed on Sword Beach with orders to advance rapidly toward Caen.
Operation Overlord
Commands a landing of paratroopers to capture a bridgehead on the Merderet
Operation Overlord
Correcttly predicts the Allies will land near Cherbourg, Hitler does not agree
Operation Overlord
Stays in Herrlingen to celebrate his wifes 50th birthday. Rommel is informed by General Spiedel 7.30AM that Allied paratroopers have landed. Rommel cancels his meeting with Hitler & returns to France
Operation Overlord
Learns of the invasion & returns to his HQ after celebrating his wifes birthday
Operation Overlord
To the east, Rommels nightmare had been realised, a continuous British-Canadian beachhead, 20km (12 miles) across and up to 10km (six miles) deep
Operation Overlord
Lands on Omaha Beach, grandson of the late President
Operation Overlord
Son of the late President, the only General to land with the 1st wave. Leads the 1st assault, Eighth Regimental Combat Team of the 4th Infantry Division
Operation Overlord
Keeps most of his forces at Calais
Operation Overlord
Diverts the 12th SS & Panzer Lehr to meet the invasion. Believes, like Hitler, the landings are a feint for Allied landings at Pas de Calais
Operation Overlord
Rommel is informed by General Spiedel 7.30AM that Allied paratroopers have landed
Operation Overlord
Commands a landing of paratroopers to capture a bridgehead on the Merderet
Operation Overlord
Arrives at the front in Caen
Operation Overlord
Commands paratroopers who land on the eastern side of the Cotentin Peninsular only
Operation Overlord
The US 5th Corps capture Isigny on the way to uniting the Utah & Omaha
Operation Overlord
Leads the 9th Div ashore at Utah Beach
Operation Overlord
Manages to land 16 Divisions ashore facing 14 enemy Divisions
Operation Overlord
Rundstedt & Rommel meet Hitler, wanting withdrawal from Normandy but are turned down
Operation Overlord
Withdrawal from Normandy is turned down by Hitler. Hitler orders a counterattack from Bayeux
Operation Overlord
The Allies gain a bridgehead over the River Odon near Caen
Operation Overlord
Turns down Rundstedt & Rommels request to withdraw from Normandy. Orders defence of Normandy to the last man
Operation Overlord
The Allies capture Hill 112 but Dempsey withdraws & the Germans recapture it
Operation Overlord
Juno is the second most heavily defended of the five landing sites chosen by the Allies, General Wilhelm Richter is in charge of the 716th Division guarding the beach, with 11 heavy batteries of 155 mm guns and 9 medium batteries of 75 mm guns
Operation Overlord
Commander of Army units in South France
Operation Overlord
Commands the 1st Airbourne Division during the Normandy landings
Operation Overlord
Instructions to construct bogus airfields to be bombed by the Allies are decrypted
Operation Overlord
During Operation Overlord, subordinate to Bradley as Deputy Commander of the First Army
Operation Overlord
Commander of Panzer Group West
Operation Overlord
Rundstedt is dismissed by Hitler for suggesting that the High Command make peace
Operation Overlord
Provides panzer support saying the British are "little fish" to be thrown back
Operation Overlord
Prevents the Canadian 9th Brigade from advancing on Le Carpiquet airfield
Operation Overlord
Patton arrives in Normandy
Operation Overlord
The High Command keep forces in Calais beleiving there will be a larger invasion there
Operation Overlord
The Allies begin their breakout from Normandy
Operation Overlord
Orders von Kluge to assemble 8 panzer Divisions to cut Pattons lines of communication
Operation Overlord
The Germans attack Avranches & gain 20km but are driven back by fighter-bombers. Hitler orders von Kluge to assemble 8 panzer Divisions to cut off Patton. Can only assemble 4 Divisions with a total of 250 tanks to defend Avranches
Operation Overlord
Orders Patton to clear Brittany with a "minimum forces"
Operation Overlord
Wants Eisenhower to transfer "D-Day" from Marsailles to Brest, Eisenhower refuses
Operation Overlord
Endorses Bradleys order for Patton to clear Brittany with "minimum forces"
Operation Overlord
Orders Patton to create a "short hook" from Le Mans to Falaise to trap the Germans
Operation Overlord
Ordered by Bradley to create a "short hook" from Le Mans to Falaise
Operation Overlord
Fails to persuade Eisenhower to transfer D-Day from Marsailles to Brest
Operation Overlord
Turns the 5th & Free French 2nd northward to Le Mans
Operation Overlord
The "Falaise Pocket" forms as a French patrol enters Argentan
Operation Overlord
Watches the D-Day landings & wires Eisenhower saying how succesful they are
Operation Overlord
Commander of First US Army, succeeds Bradley
Operation Overlord
Arrives in England to organize a US tactical air force in the United Kingdom
Operation Overlord
Arrives in England to organize a US tactical air force in the United Kingdom. Commands the 9th US Airforce for Operation Overlord
Operation Overlord
Appointed Commander of the 2nd Tactical Airforce
Operation Overlord
Commands the British Second Army during Operation Overlord
Operation Overlord
Arrives in England to assume duties as Supreme Allied Commander of Operation Overlord. Carries out a plan to bomb the French railway system, despite Churchills opposition
Operation Overlord
Plans to counter the Allied invasion of Normandy are made at Margival
Operation Overlord
Directive 51 is issued the strengthen the westeern defences
Operation Overlord
Mistakenly believes the Allies will land near the Somme & the Schelde
Operation Overlord
Given the responsibility of developing ampibious armoured support, "Hobarts funnies"
Operation Overlord
Commander in Chief of the Allied airforces for Operation Overlord
Operation Overlord
Helps convince the Germans he will be leading an Allied landing in the Pas de Calais
Operation Overlord
Responsible for western intelligence for the OKW
Operation Overlord
Commands the Tactical Forces East during Operation Overlord
Editorial provenance
Compiled and edited by World History Database.
Historical context is editorial material; the chronology is generated from World History Database D-Day and Normandy records.
Last reviewed: September 2026.
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