Effect of World War I on children in the United States
Though the United States was in combat for only a year and 7 months, the reorganization of society had a great effect on life for children in the United States. More than 116,000 members of the U.S. military died in the war, far fewer than combatants from other countries.
Source: Wikipedia — Effect of World War I on children in the United States (CC BY-SA 4.0)