In the executive branch, the head of government is the highest or the 2nd-highest official of a sovereign state, a federated state, an autonomous region, a dependent territory, a self-governing colony
President Dilma Rousseff of Brazil and President Christina Kirchner of Argentina in 2015
The heads of government of five members of the Commonwealth of Nations at the 1944 Commonwealth Prime Ministers' Conference. From left to right, Mackenzie King (Canada), Jan Smuts (South Africa), Winston Churchill (United Kingdom), Peter Fraser (New Zealand), and John Curtin (Australia).
The prime minister of the United Kingdom is the head of government of the United Kingdom. The prime minister advises the sovereign on the exercise of much of the royal prerogative, chairs the Cabinet,
Head of government
…collegial Government, whose members are all appointed and dismissed at the Prime Minister's sole discretion. Under the unwritten British constitution, the prime minister's role has evolved, based often on the individual's personal appeal and strength of character, as contrasted between, for example, Winston Churchill…
Prime Minister Andy Burnham portrait
Robert Walpole was the first to hold the position of Prime Minister.
Prime Minister Neville Chamberlain alongside his cabinet on the eve of World War II in September 1939
Prime Minister David Cameron announcing the approval of more free schools across the country as a part of his education policy on 9 March 2015