Great Britain does not have a leader because it is not a country. The head of state of the United Kingdom is Queen Elizabeth II. The current head of government in the UK is David Cameron.
When
There is no pre-determined limit.
Gordon Brown
Winston Churchill
Gordon Brown
Gordon Brown
Oliver Cromwell.
David Cameron is the current leader
Prime Minister.
No, but Harold Wilson was
Winston Churchill
Conservative Prime Minister Winston Churchill was the leader of Great Britain in the last coalition in the United Kingdom. He led the nation during most of the Second World War.