Rebels in Libya are fighting the last of Colonel Gaddafi's forces as they gradually secure the capital, Tripoli.

Ellen O'Gorman, senior lecturer in classics at Bristol University, and Antony Beevor, the military historian, debate how the capture of Tripoli compares with the fall of other cities in past conflicts, such as Berlin and Carthage.

Get in touch with Today via email , Twitter or Facebook or text us on 84844.