# Ring of Steel

U.S. armed forces protect the homefront.

- Kind: Short
- Year: 1941
- Runtime: 8 min
- By: Film Unit, Office For Emergency Planning
- Genres: War, Industrial and advertising
- Archive: [Internet Archive](https://archive.org/details/RingofSt1941)
- Licence or status: [Public domain (Creative Commons dedication)](http://creativecommons.org/licenses/publicdomain/) (as the archive states it)
- Who can watch: Teens profiles and older (the archive gives no rating; placed by Invisible Network from its collection and subjects)

Not offered: its uploader marks it public domain, and the US Copyright Office's records do not settle that it is (a record that may be another film's, a film first published abroad, a year when renewal was automatic, or a country they do not name). Unclear is not offered.