OTTAWA, ON - JUNE 30: Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge lays a wreath at the tomb of the Unknown Soldier as they visit the National War Memorial on June 30, 2011 in Ottawa, Canada. The newly married Royal Couple have arrived in Canada today for their first joint overseas tour. Ottawa is the start of a 12-day visit to North America which will take in some of the more remote areas of the country such as Prince Edward Island, Yellowknife and Calgary. The Royal couple will also join millions of Canadians to take part in tomorrow's Canada Day celebrations which mark Canada's 144th Birthday. (Photo by Arthur Edwards-Pool/Getty Images)
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OTTAWA, ON - JUNE 30: Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge attend the wreath laying ceremony at the National War Memorial on day 1 on the Royal Couple's North American Tour on June 30, 2011 in Ottawa, Canada. (Photo by Samir Hussein/WireImage)
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WireImage Samir Hussein

OTTAWA, ON - JUNE 30: Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge attend the wreath laying ceremony at the National War Memorial on day 1 on the Royal Couple's North American Tour on June 30, 2011 in Ottawa, Canada. (Photo by Samir Hussein/WireImage)
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WireImage Samir Hussein

Catherine, Duchess of Cambridge attends the wreath laying ceremony at the National War Memorial on day 1 on the Royal Couple's North American Tour on June 30, 2011 in Ottawa, Canada.
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WireImage Samir Hussein

OTTAWA, ON - JUNE 30: A message is seen after Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge laid a wreath at the tomb of the Unknown Soldier as they visit the National War Memorial on June 30, 2011 in Ottawa, Canada. The newly married Royal Couple have arrived in Canada today for their first joint overseas tour. Ottawa is the start of a 12-day visit to North America which will take in some of the more remote areas of the country such as Prince Edward Island, Yellowknife and Calgary. The Royal couple will also join millions of Canadians to take part in tomorrow's Canada Day celebrations which mark Canada's 144th Birthday. (Photo by Arthur Edwards-Pool/Getty Images)
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