Later, the definition of GI broadened and during World War I it was used to refer to all things Army-related, according to “Origins of the Specious: Myths and Misconceptions of the English Language” by Patricia T. O’Conner and Stewart Kellerman. When this happened, GI was reinterpreted as “government issue” or “general issue.”
Cartoonist Dave Breger, who was drafted into the Army in 1941, is credited with coining the name with his comic strip titled “G.I. Joe,” which he published in a weekly military magazine called Yank, beginning in 1942. In 1964, U.S. toy company Hasbro, after taking note of competitor Mattel’s huge success with the Barbie doll (launched in 1959), debuted “G.I. Joe,” a military-themed line of action figures for boys.