Ring of Steel is a 1942 short documentary film directed by Garson Kanin and narrated by Spencer Tracy.

"Dedicated to the American Soldier", the film was released on April 2, 1942, and distributed free to all U.S. theaters.

The film was produced by Warner Bros. and the United States Office for Emergency Management.

[1] Spencer Tracy narrates a tribute to U.S. soldiers from 1776 to 1943, who have forged a "ring of steel" to protect American democracy.

[2] Tracy's narration was recorded at the Long Island studio of the Army Signal Corps February 19, 1942.