CALGARY, AB - JULY 07: Catherine, Duchess of Cambridge speaks to soldiers as she arrives at Calgary Airport on July 7, 2011 in Yellowknife, Canada. The newly married Royal Couple are on the eighth day of their first joint overseas tour. The 12 day visit to North America is taking in some of the more remote areas of the country such as Prince Edward Island, Yellowknife and Calgary. The Royal couple started off their tour by joining millions of Canadians in taking part in Canada Day celebrations which markCanada's 144th Birthday. (Photo by Chris Jackson/Getty Images)