Prince Harry on exercise in the UK in November 2005. Clarence House said Wednesday January 25, 2006, that Prince Harry is to join the Blues and Royals regiment of the Household Cavalry after completing his Sandhurst training in April. The 21-year-old third in line to the throne hopes to become an Armoured Reconnaissance Troop Leader at the forefront of Army operations. (Photo by Anwar Hussein Collection/ROTA/WireImage)