Where did the longest siege in British military history take place?

Question: Where did the longest siege in British military history take place!?
Best Answer - Chosen by Asker:

LONDONDERRY!. The longest siege began with the closing of the gates of Londonderry against the Catholic King James II in 1689 and this began the longest siege in British Military history, which lasted for 105 days!.
Their cry was "No Surrender"!.Www@QuestionHome@Com

The siege of Harlech Castle 1461 - 1468 (7 years)!. This was during the War of the Roses!. The reason why the castle lasted so long was because it's coastal location allowed it to be re-supplied with food and men from friendly ships!.Www@QuestionHome@Com

The Siege of Sangin, that lasted between June 2006 and April 2007, during which time Taliban insurgents attempted to besiege the district centre of Sangin District in Helmand Province, Afghanistan, occupied by British ISAF soldiers!.Www@QuestionHome@Com

I'd go for Gib as well, though if you mean in Britain, probably York, 1643-4, or Newark in the Civil War!.Www@QuestionHome@Com

Seige of Gibraltar (1779-1783)Www@QuestionHome@Com