By MARTIN WILLIAMS COMBAT READY: Prince Harry Prince Harry is to be deployed to Iraq for a six-month tour of duty, prompting fears he could become a prime target for insurgents. The 22-year-old prince, who is third in line to the throne, becomes the first senior royal to serve on the front line since his uncle, Prince Andrew, served in the Falklands conflict in 1982. His Blues and Royals regiment will be deployed as part of a long-planned rotation of troops. The announcement, confirmed jointly by the Ministry of Defence and Clarence House, comes 24 hours after Prime Minister Tony Blair outlined the first step in a phased withdrawal of British forces by declaring 1600 troops would return within the next few months.