The Steel Ring - The Big Picture
National Archives and Records Administration ARC Identifier 2569526 / Local Identifier 111-TV-256 Big Picture: The Steel Ring Department of Defense. Department of the Army. Office of the Deputy Chief of Staff for Operations. U.S. Army Audiovisual Center. (ca. 1974 - 05/15/1984). The threat of atomic attack hangs over America in these times of lukewarm peace. An enemy can choose his time and place. There will be no warning. Our only defense is to be ready. THE BIG PICTURE camera shows you "The Steel Ring," the complicated defense lines of radars and guns which surround our country and cities.