It is a green rope is for a US Air Force Airman during basic training and AIT, or tech school.
Whether that distinction makes any sense at all remains up for debate.
If you browse through our list use the menu at the top to find it you can looking through tons of common phrases.
The other colored cords, corresponding to the different army branches, can be authorized by unit commanders to be worn during particular events.
Although I know how it was used in one specific case, I would like to learn more about its meaning.
Retrieved 2019-10-28 — via NYTimes.