BAGHDAD (AFP) - Around 10,000 US and Iraqi troops launched a major air and ground assault on Al-Qaeda networks in and around the restive city of Baquba, northeast of Baghdad, on Tuesday, the US military said. "Task Force Lightning commenced Operation Arrowhead Ripper today in a large-scale effort to eliminate Al-Qaeda in Iraq terrorists operating in Baquba and its surrounding areas," the military said. "Approximately 10,000 soldiers, with a full complement of attack helicopters, close air support, Strykers and Bradley Fighting Vehicles, are taking part in Arrowhead Ripper, which is still in its opening stages."