D Day

Firstly, some of the raw data: 

Normandy landings 

• Part of Operation Overlord and the Western Front of World War II 
• Date 6 June 1944
• Location Normandy, France 

Overview

The Normandy landings were the landing operations and associated airborne operations on Tuesday, 6 June 1944 of the Allied invasion of Normandy in Operation Overlord during World War II. Codenamed Operation Neptune and often referred to as D-Day, it was the largest seaborne invasion in history. 

The operation began the liberation of France (and later Western Europe) and laid the foundations of the Allied victory on the Western Front. Planning for the operation began in 1943. 

In the months leading up to the invasion, the Allies conducted a substantial military deception, codenamed Operation Bodyguard, to mislead the Germans as to the date and location of the main Allied landings. 

The weather on D-Day was far from ideal, and the operation had to be delayed 24 hours; a further postponement would have meant a delay of at least two weeks, as the invasion planners had requirements for the phase of the moon, the tides, and the time of day that meant only a few days each month were deemed suitable. 

Territorial changes

Five Allied beachheads established in Normandy 

Allies 

• United Kingdom 
• United States 
• Canada 
• France 
• Australia 
• Czechoslovakia 
• Poland 
• Belgium 
• Netherlands 
• Norway 
• New Zealand 
• Greece 
• South Africa 

 Commanders and leaders 

• United Kingdom Bernard Montgomery 
• United Kingdom Miles Dempsey 
• United Kingdom Trafford Leigh-Mallory 
• United Kingdom Bertram Ramsay 
• United Kingdom Arthur Tedder 
• United States Dwight D. Eisenhower 
• United States Omar Bradley 
• Nazi Germany Gerd von Rundstedt 
• Nazi Germany Erwin Rommel 
• Nazi Germany Hugo Sperrle 
• Nazi Germany Karl Dönitz 
• Nazi Germany L. G. von Schweppenburg 
• Nazi Germany Friedrich Dollmann 
• Nazi Germany Hans von Salmuth 
• Nazi Germany Wilhelm Falley 

Casualties and losses 

• 10,000+ casualties:
• 4414 confirmed dead
• 4000–9000 killed, wounded, missing or captured

Feel fre to use all or part of the screenshots (and text) but do attribute, pls, to Wikipedia. 

So, now, in 2023 ... just what did they fight and die for?