1. Alesia

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. 1 January 2004. 48 min

As resistance to the Roman invasion, the Gallic warrior Vercingetorix marshalled troops against the Romans and their most inspired commander – Julius Caesar.

2. Ciudad Rodrigo

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. 8 January 2004. 47 min

Here at Ciudad Rodrigo, there was the bloody business of siege warfare – where civilians and soldiers share the same conditions and privations.

3. Petersburg

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. 15 January 2004. 47 min

Union forces should have seized Petersburg in June 1864, but through a mixture of confusion and incompetence they failed and a year-long siege followed.

4. Verdun

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. 22 January 2004. 47 min

Almost 700,000 French and German troops had been killed or wounded in this hellish protracted siege that earned the chilling nick-name "The Mincer."

5. Leningrad

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. 29 January 2004. 47 min

The grim, powerful story of the "Hero City" that lost one million of its citizens as it steadfastly withstood a 900-day German siege.

6. Newark

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. 5 February 2004

The battles for the strategically-vital town in Nottinghamshire, England are classic examples of how a siege was conducted during the long and bitter English Civil War.