World War I casualties
The total number of deaths includes from 9 to 11 million military personnel. The civilian death toll was about 8 million, including about 6 million due to war-related famine and disease. The Triple Entente (also known as the Allies) lost about 6 million military personnel while the Central Powers lost about 4 million. At least 2 million died from diseases and 6 million went missing, presumed dead. This article lists the casualties of the belligerent powers based on official published sources.
Effect of World War I on children in the United States
Over the course of the war, the United States mobilized hundreds of thousands of men and endured an estimated 117,465 casualties. Of the men who survived and returned home, post-traumatic stress disorder created a major impact on society. During this time, and still today, post-traumatic stress (then more likely to be known as "shell shock") was not fully understood, but because of the traumatic nature of battle, many men were negatively affected after the war. Some men were forced to leave battle, which many people considered cowardice, and there were asylums throughout Europe housing men suffering from this condition. In some extreme cases, men were even shot for showing weakness. There are still people living today who lost family members because of this practice, which created lasting impacts on these children. Additionally, many of these men were teenagers when they left for war, and virtually all were under the age of 30; therefore many of these soldiers were barely out of childhood themselves.