If he knew then what he knows now, he might have made some different decisions before the start of the Iraq war in 2003, the outgoing chairman of the Joint Chiefs of Staff told reporters Friday.

"One of the mistakes I made in my assumptions going in was that the Iraqi people and the Iraqi Army would welcome liberation, that the Iraqi Army, given the opportunity, would stand together for the Iraqi people and be available to them to help serve the new nation," Gen. Peter Pace said.