"For more than three and a half years, from 1779 to 1783, the tiny territory of Gibraltar was besieged and blockaded, on land and at sea, by the overwhelming forces of Spain and France. It became the longest siege in British history, and the obsession with saving Gibraltar was blamed for the loss of the American colonies in the War of Independence. Located between the Mediterranean and Atlantic, on the very edge of Europe, Gibraltar was a place of...