Portsmouth

Portsmouth is a port city on the south coast of England and home to HM Naval Base Portsmouth, the Royal Navy's principal operating base. The base has anchored British naval power since the sixteenth century and currently hosts the Queen Elizabeth-class aircraft carriers, Type 45 destroyers and Type 23 frigates, making it one of the largest naval bases in Western Europe and the main departure point for Royal Navy deployments beyond European waters.

HMS Dragon, a Type 45 destroyer based at Portsmouth, sailed from the port in March 2026 for the Eastern Mediterranean before the Royal Navy confirmed on 11 May 2026 that she was forward-deploying toward a possible Hormuz security mission. Whale Island, within the base, also houses Navy Commercial, the office that in August 2026 opened market consultations on certifying and funding uncrewed maritime vessels, work that sits alongside the base's traditional role in crewed-fleet deployment.

Portsmouth City Council has been a unitary authority since 1997 and was among five councils, alongside Essex, Norfolk, Suffolk and Harlow, that had filed judicial review proceedings against the government's Local Government Reorganisation programme by 22 July 2026, though its objection concerns the wider programme's treatment of established unitaries rather than any reorganisation of the city itself.