Overview

The Foreign and Commonwealth Office (FCO) was the United Kingdom government department charged with conducting the country's external relations, protecting British interests overseas and providing consular assistance to UK nationals. It acted as the administrative headquarters for the UK's diplomatic and consular network, coordinating policy across embassies, high commissions and international missions.

Primary responsibilities

Core tasks undertaken by the FCO included:

  • Shaping and implementing UK foreign policy and bilateral relations.
  • Supporting and safeguarding British citizens abroad through consular services, travel advice and emergency assistance.
  • Representing the UK at international organisations and multilateral forums.
  • Promoting trade, cultural ties and development objectives in cooperation with other departments.

The minister responsible held the title Secretary of State for Foreign and Commonwealth Affairs, commonly shortened to the "Foreign Secretary," a senior Cabinet position that provided political leadership of the department. Administrative work was carried out by professional diplomats and civil servants who formed the Diplomatic Service.

Organisation and overseas presence

The FCO managed the UK's global network of embassies, high commissions in Commonwealth countries, consulates and permanent missions to international bodies. Staff ranged from career diplomats to locally employed staff and specialists in political, economic, press and consular sections. The department also worked closely with other government departments, intelligence services and international partners to deliver foreign policy objectives.

History and development

The FCO was created in 1968 by merging the former Foreign Office with the Commonwealth Office to reflect the changing relationship between Britain and the Commonwealth. Over subsequent decades its work adapted to post‑imperial diplomacy, the expansion of multilateral institutions and shifting economic and security priorities. In 2020 the department was combined with the Department for International Development to form the Foreign, Commonwealth & Development Office, incorporating development policy more directly into diplomatic activity.

Significance and legacy

The FCO is remembered as the central institution that organised Britain’s diplomatic engagement throughout the late 20th and early 21st centuries. Its legacy persists in the structures and practices retained by its successor department. For more on official roles, functions and historical records see the UK government pages and related resources: department overview, United Kingdom government, Foreign Secretary and Cabinet.