Mortar rounds on Sunday smashed into a central Iraq recruitment centre for civilians volunteering to fight a militant offensive, killing six people, police and a doctor said. Faced with a militant offensive sweeping south toward Baghdad, Prime Minister Nuri al-Maliki an**unced the Iraqi government would arm and equip civilians who volunteer to fight, and thousands have signed up. And on Friday, influential Shiite cleric Grand Ayatollah Ali al-Sistani issued a call to arms for people to fight "terrorists," a move that will boost recruitment.