US Secretary of Defence Donald Rumsfeld has arrived in Baghdad on an unannounced visit. Mr Rumsfeld, who was met by the US commander in Iraq, Gen George Casey, is to visit US troops in the country. He arrived from Afghanistan, where he ruled out any rapid pullout of US forces from the country. Mr Rumsfeld’s trip to Iraq came as British Prime Minister Tony Blair paid tribute to UK troops after flying into southern Iraq on a surprise visit. Full Story