G.I.

G.I. is an informal term that refers to "a soldier in the United States armed forces, especially the army".^[1] It is mostly deeply associated with World War II,^[2] but continues to see use.^[3]

It was originally an initialism used in U.S. Army paperwork for items made of galvanized iron.^[2] The earliest known instance in writing is from either 1906^[3] or 1907.^[2]

During World War I, U.S. soldiers took to referring to heavy German artillery shells as "G.I. cans".^[2][3] During the same war, "G.I.", reinterpreted as "government issue"^[2] or "general issue",^[3] began being used to refer to any item associated with the U.S. Army,^[3] e.g., "G.I. soap".^[3] Other reinterpretations of "G.I." include "garrison issue" and "general infantry".^[3]

The earliest known recorded instances of "G.I." being used to refer to an American enlisted man as a slang term are from 1935.^[2] In the form of "G.I. Joe" it was made better known due to it being taken as the title of a comic strip by Dave Breger in Yank, the Army Weekly, beginning in 1942.^[2] A 1944 radio drama, They Call Me Joe, reached a much broader audience. It featured a different individual each week, thereby emphasizing that "G.I. Joe" encompassed U.S. soldiers of all ethnicities.^[4] They Call Me Joe reached civilians across the U.S. via the NBC Radio Network and U.S. soldiers via the Armed Forces Radio Network.

"G.I. Jane" originally referred to a member of the Women's Army Corps during World War II, but more recently it is used to refer to any American woman soldier.^[3]

In British military parlance and in armed forces modelled on British military traditions, G.I. refers to a Gunnery Instructor, generally an NCO responsible for inducting and training recruits.^{[citation needed]}