After Tunisia gained independence from France in 1956, France remained in control of the city and its naval base, a strategic port on the Mediterranean, which played an important part in French operations during the Algerian War. France had promised to negotiate the future of the base, but had so far refused to remove it. Tunisia was further infuriated upon learning that France planned to expand the airbase. The French military finally abandoned Bizerte on 15 October 1963, after the conclusion of the Algerian War.