President Barack Obama and first lady Michelle Obama wait to greet Canadian Prime Minister Justin Trudeau and Sophie Grégoire Trudeau at the North Portico of the White House in Washington, Thursday, March 10, 2016, for a state dinner. (AP Photo/J. Scott Applewhite)
WINSTON CHURCHILL DURING SECOND WORLD WAR UNITED KINGDOM (H 8856) British Prime Minister Winston Churchill, American Ambassador to London John Winant, and Australian Prime Minister Robert Menzies after a ceremony at Bristol University on 12 April 1941 where Churchill, as Chancellor of the university, presented degrees of Doctors of Laws to the two men.
Ho Ching, first lady Michelle Obama, Prime Minister Lee Hsien Loong of Singapore and U.S. President Barack Obama pose for photographs in the White House August 2, 2016 in Washington, DC. The Obamas are hosting the prime minister and his wife for an official state dinner.