On June 6, 1944, more than 160,000 Allied troops landed along a 50-mile stretch of heavily-fortified French coastline, to fight Nazi Germany on the beaches of Normandy, France.
https://www.army.mil/d-day/
Early on the misty winter morning of Dec. 16, 1944, more than 200,000 German troops and nearly 1,000 tanks launched Adolf Hitler's last bid to reverse the ebb in his fortunes that had begun when Allied troops landed in France on D-Day.
https://www.army.mil/botb/
Gen. Dwight D. Eisenhower called the operation a crusade in which, “we will accept nothing less than full victory.” More than 5,000 Ships and 13,000 aircraft supported the D-Day invasion, and by day’s end, the Allies gained a foot-hold in Continental Europe. The cost in lives on D-Day was high. More than 9,000 Allied Soldiers were killed or wounded, but their sacrifice allowed more than 100,000 Soldiers to begin the slow, hard slog across Europe, to defeat Adolf Hitler’s crack troops.
https://www.army.mil/d-day/
However, troops from many other countries participated in D-Day and the Battle of Normandy, in all the different armed services: Australia, Belgium, Czechoslovakia, France, Greece, the Netherlands, New Zealand, Norway and Poland.
http://www.ddaymuseum.co.uk/d-day/d-day-and-the-battle-of-normandy-your-questions-answered
Twelve Allied nations provided fighting units that participated in the invasion, including Australia, Canada, Belgium, France, Czechoslovakia, Greece, New Zealand, the Netherlands, Norway, Poland, the United Kingdom, and the United States. Operation Overlord was the codename for the Allied invasion of northwest Europe. The assault phase, or the establishment of a secure foothold, was known as Operation Neptune. Operation Neptune began on D-Day (June 6, 1944) and ended on June 30, when the Allies had established a firm foothold in Normandy. Operation Overlord also began on D-Day, and continued until Allied forces crossed the River Seine on August 19.
http://www.u-s-history.com/pages/h1749.html
So we have the UK, the United States, mexico, china, Poland, Belgium, Czechoslovakia, usa the Netherlands, the ozzzys, New Zealand, and Norway. Many countries were involved in D-Day. The three main nations were the United Kingdom who attacked code named Gold and Sword beaches. The United States who attacked Utah and Omaha beaches. And Canada who attacked Juno Beach. Also their were units fighting for the free French, and Poland also fought as well.
http://www.answers.com/Q/What_countries_were_involved_in_the_D-Day_invasion
Have a look at D-Day on your Doorstep, our unique new listing of locations throughout the UK that are connected to the D-Day Landings (we encourage you to add your own locations too). D-Day: your questions answered. Answers written by the D-Day Museum, Portsmouth. Click on the question to jump to the relevant answer. If you find the information on this page useful, please consider making a donation - thank you.
http://www.ddaymuseum.co.uk/d-day/d-day-and-the-battle-of-normandy-your-questions-answered
The D-Day Museum was established in Portsmouth due to the important role played by the city - and the region - in preparing for D-Day, and sustaining the effort in Normandy after the landings. You can find out more about this on another part of our website: click here.
http://www.ddaymuseum.co.uk/d-day/d-day-and-the-battle-of-normandy-your-questions-answered
More than 60 years later, the Normandy Invasion, or D-Day, remains the largest seaborne invasion in history, involving nearly three million troops crossing the English Channel from England to Normandy in occupied France.
http://www.u-s-history.com/pages/h1749.html
The Battle of the Bulge. In late 1944, during the wake of the Allied forces' successful D-Day invasion of Normandy, France, it seemed as if the Second World War was all but over.
https://www.army.mil/botb/
who participated in d day invasion
Australia, Canada, Belgium, France, Czechoslovakia, Greece, New Zealand, the Netherlands, Norway, Poland, the United Kingdom, and the United States participated in D Day invasion. Australia, Canada, Belgium, France, Czechoslovakia, Greece, New Zealand, the Netherlands, Norway, Poland, the United Kingdom, and the United States participated in the D Day Invasion.