The British Overseas Territories (BOTs), also known as the United Kingdom Overseas Territories (UKOTs), are fourteen territories with a constitutional and historical link with the United Kingdom. They are the last remnants of the former British Empire and do not form part of the United Kingdom itself. The permanently inhabited territories are internally self-governing, with the United Kingdom retaining responsibility for defence and foreign relations. Three of the territories are inhabited, chiefly or only, by a transitory population of military or scientific personnel. All but one of the rest are listed by the UN Special Committee on Decolonization as non-self-governing territories. All fourteen have the British monarch as head of state. These UK government responsibilities are assigned to various departments of the Foreign, Commonwealth and Development Office and are subject to change.