There are others who could carry out these duties apart from the Prime Minister, for example, Deputy Prime-ministers for this exact purpose. Some of the key responsibilities of a Deputy Prime Minister involve both home and foreign affairs. The Deputy Prime Minister has significant responsibilities in other key Cabinet Sub-Committees, notably chairing the Home Affairs Committee which coordinates domestic policy issues including those relating to constitutional and political reform, migration, health, schools and welfare. The Deputy Prime Minister has an important foreign policy role, with responsibility for building a range of strategic relationships in Europe and across the world and for championing the Government’s commitment to the Millennium Development Goals. He is also Deputy Chair of the National Security Council which oversees all aspects of the nation’s security. [1] Those in favour of a Republic also argue that Britain has a professional diplomatic corps to represent the interests of the country both at home and abroad.  [1] Deputy Prime Minister, Role and Responsibilities, available at  (accessed 31/05/2011)