Prince Charles with Camilla
Prince Charles and his wife the Duchess of Cornwall have arrived in Washington as they start their three-day US visit.
The couple have touched down in the American capital ahead of their meeting with President Barack Obama at the White House.
The political leader is due to hold informal talks with Charles and Camilla in the oval office.
The 66-year-old heir-to-the-throne will begin his trip with a visit to the National Archives on Wednesday (18.03.15) where he will view the United States' 'Charters of Freedom' and the 1297 version of the Magna Carta - a treaty that is part of the American Bill of Rights and the Constitution and that marks its 800th anniversary this week.
The eco-friendly prince will also deliver a speech to staff of several major companies, government officials and leading environmental organisations about the long-term damage being done to the world's oceans and seas by plastic waste.
Camilla, 67, will also be carrying out some solo duties, one of the highlights being a tour of Washington's Shakespeare Theatre Company.
They are also scheduled to spend a day visiting Kentucky to mark 150th anniversary of the end of the American Civil War and the death of President Abraham Lincoln.
The trip is the couple's third official visit to the US together and British ambassador Sir Peter Westmacott has stated the trip will "showcase the best of the transatlantic relationship" between America and the UK.