A U.S. Army 3rd Infantry Division M1/A1 Abrahms tank rolls deeper into Iraqi territory March 23, 2003 south of the city of An Najaf, Iraq. U.S. and British forces continue to assault Iraq from land, sea and air as part of the ongoing Operation Iraqi Freedom. (Scott Nelson/Getty Images)
Here & Now's Deepa Fernandes speaks with retired U.S. Army Gen. David Petraeus, who helped lead American troops into Baghdad 20 years ago Monday.
