| 释义 |
{{wiktionary|ring of steel}} Ring of steel may refer to: - Ring of steel (London), the security and surveillance cordon surrounding the City of London
- Ring of Steel (Kabul), a series of police checkpoints in central Kabul during the 2000s Afghan War
- Ring of Steel (film), a 1940 American military recruitment film
- Germany and Austria-Hungary at War, 1914–1918, a 2014 book by Alexander Watson
- The Moscow defense ring during the Cold War
{{disambiguation}} |