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Britain's Prince William met with President Barack Obama in the Oval Office on Monday (December 8), during a visit to Washington, DC.

Prince William was scheduled to attend a conference on illegal trafficking of ivory and other wildlife at the World Bank, the White House said. His charity "United for Wildlife" is combating the ivory market.

The visit is part of a trip which includes New York City by William and his wife, Kate, known officially since their 2011 wedding as the Duke and Duchess of Cambridge.