Why did gi wear twin dog tags in World War 2?

During World War II, U.S. GIs wore twin dog tags for identification purposes. One tag was used to identify the soldier and remained with the body, while the other was collected by military personnel for record-keeping. This system ensured that the military could accurately identify casualties and notify next of kin, providing a crucial means of accountability during the chaos of war. The tags were also designed to be durable and resistant to wear, ensuring they remained legible in various conditions.