Obama meets with U.K. Prime Minister David Cameron (10 images)

United States President Barack Obama (R) meets with U.K. Prime Minister, David Cameron, in the Oval Office of the White House in Washington, D.C., U.S., on Monday May 13, 2013. Cameron rebuked lawmakers in his Conservative Party who have already decided that Britain should withdraw from the European Union. UPI/Andrew Harrer

British Prime Minister David Cameron (L) makes U.S. President Barack Obama laugh as he makes a remark that he still does not understand college basketball but is learning about American baseball during opening remarks at a joint press conference in East Room of the White House in Washington, DC on May 13, 2013. The two world leaders discussed the Syria situation and other world and domestic issues. UPI/Pat Benic

U.S. President Barack Obama makes a comment as British Prime Minister David Cameron (not shown) listens during a joint press conference in East Room of the White House in Washington, DC on May 13, 2013. The two world leaders discussed the Syria situation and other world and domestic issues. UPI/Pat Benic

With American and British flags in the background, British Prime Minister David Cameron makes a comment as U.S. President Barack Obama (not shown) listens during a joint press conference in East Room of the White House in Washington, DC on May 13, 2013. The two world leaders discussed the Syria situation and other world and domestic issues. UPI/Pat Benic