McDonald’s introduced its drive-thru service for the convenience of the military. The first McDonald’s drive-thru was installed in a restaurant in Sierra Vista, AZ, near the Fort Huachuca military base. Military rules forbade the soldiers from wearing uniforms in public, and they weren’t about to change into civilian clothes just to run out to grab a burger. Restaurant manager David Ricj came up with a solution: he cut a hole in the wall for members of the military to pick up their orders without getting out of their car.
Sylvia Shults, author 