World War II was the deadliest conflict in history. Between 1939 and 1945, an estimated 75 million people perished across the globe nearly three percent of the worlds population at the time. Almost everyone who can truly remember the horrors of the era has died, but photos of World War II remain to serve as a tragic reminder of one of historys darkest hours.During the six years that the war raged in Europe and the Pacific, photographers captured countless images that brought the conflict to life for civilians. Of course, millions of men, women, and children didnt need photos to experience the fighting it came directly to their front doors.Indeed, as many as 55 million civilians perished during the war. Many of them were casualties of bombing campaigns, while others died from disease and starvation. The Nazis also systematically murdered roughly 11 million people during the Holocaust.Click here to view slideshowAbove, look through 77 World War II photos that reveal the true horrors of the conflict. And below, read more about some of its bleakest moments.How Many People Died During History's Bloodiest Conflict?Estimates of the total number of deaths during World War II vary, but according to the National World War II Museum, at least 15 million troops died in battle, and 45 million civilians perished from causes directly linked to the conflict.This brings the estimated death toll to 60 million, but many historians believe that it was even higher closer to 75 million. Both troops and the general population suffered from starvation and diseases like typhus and tuberculosis. And these diseases spread rampantly in Nazi Germany's concentration camps.Public DomainNew arrivals at Auschwitz-Birkenau pictured just before they were led to the gas chambers.The Holocaust alone was the cause of at least 11 million deaths. Six million victims were Jewish men, women, and children who were systematically dehumanized and murdered by the Nazis simply because they weren't part of the "Aryan race." Adolf Hitler's Third Reich also targeted dissenters, prisoners of war, Romani people, ethnic Poles, gay men, Jehovah's Witnesses, and people with disabilities.Then, there were the millions of civilians who died during bombing campaigns throughout the war. Between September 1940 and May 1941, Germany and Italy dropped hundreds of thousands of bombs over the United Kingdom during the Blitz, killing more than 40,000 residents and destroying two million homes. Likewise, the Allied bombing of Dresden in February 1945 sparked a firestorm that led to more than 20,000 deaths. World War II photos show heaps of charred bodies lying in the streets in the aftermath of the attack.German Federal ArchivesVictims of the Dresden bombing and ensuing firestorm await cremation.And in the final days of the war, the U.S. military dropped two atomic bombs on the Japanese cities of Hiroshima and Nagasaki. As many as 200,000 civilians died, and hundreds of thousands of survivors were left with debilitating injuries and ostracized by their peers out of fear of contagion.Images of these atrocities are some of the most devastating photos of World War II, but some of the pictures taken on the front lines of battle are equally disturbing.World War II Photos From The Conflict's Bloodiest BattlesOne of the photos taken at the Battle of Stalingrad the deadliest battle of World War II shows a towering pile of German bodies stretching as far as the eye can see. Between July 1942 and February 1943, Nazi Germany and its allies in Italy, Romania, Hungary, and Croatia fought the Soviet Red Army for control of the city of Stalingrad.Public DomainThe Battle of Stalingrad was the bloodiest of World War II.By the time it was all over, as many as three million people were dead.The Germans and Soviets met once again in April 1945 at the Battle of Berlin. It was one of the final battles in the Western Theater, and it led to Hitler's suicide, Germany's surrender, and the collapse of the Third Reich.But before that came D-Day. The invasion of Normandy brought some of the most iconic photos of World War II, from planes flying into battle to troops wading through the waves to storm the beaches.Public DomainTroops storm Omaha Beach on D-Day.An equally iconic image is the raising of the American flag during the Battle of Iwo Jima. The photo of the U.S. Marines atop Mount Suribachi won a Pulitzer Prize and became one of the most reproduced pictures of all time.Then, there are the famous photos of celebrations at the end of the war: The sailor kissing a stranger on V-J Day, emaciated prisoners of war cheering as their liberators arrive, and jubilant crowds in the streets of London all illustrate the world's euphoria that history's grimmest chapter had come to a close.After looking through these photos of World War II, discover 21 of the most surprising myths about the conflict. Then, look through 55 colorized photos that capture the brutal reality of the war.The post 77 Rarely-Seen Photos From World War 2, The Deadliest War In History appeared first on All That's Interesting.