13/03/2012 07:36 GMT | Updated 13/03/2012 07:39 GMT

Cameron In Washington For Talks With Obama - A History Of US-UK Summits (PICTURES)

David Cameron is jetting off to the United States to start bilateral talks with President Obama on Tuesday, but the meeting comes at a difficult moment for the White House.

Obama is presiding over a healthier economy of late, but the attack on Afghan civilians by a US solider on Sunday caused significant angst in Washington DC.

Cameron wants to focus on meeting Obama and has appears to have no time for the Republican Presidential candidates. Leaving him open to accusations he is helping Obama with is re-election campaign by visiting the swing state of Ohio on Thursday.

To mark his trip across the Atlantic, we thought it worth looking back at how the relationship has been between prime ministers and presidents. It has been a relationship of highs and lows...