Bill Gertz: Two-Layer Defense for Baghdad "Iraqi military forces are setting up a two-layer defense ring around Baghdad in preparation for U.S. military action, according to U.S. intelligence officials. Planning of the defense perimeters has been under way since November and involves the deployment of units from the regular Iraqi army and the Republican Guard in an outer ring around the Iraqi capital. A closer defense ring is being set up using troops and forces belonging to the Special Republican Guard. Those units are assigned with leadership protection."