In Afghanistan, hundreds of villagers living in a Taliban-controlled area of southern region are leaving before a major Nato-led offensive gets under way.<br/><br/>It is expected to be one of the largest counter-insurgency operations since the Afghan conflict began in 2001.<br/><br/>The operation 'Mushtarak' – which means together in the Pashtun language, is expected to be launched to clear insurgents from the southern town of Marja, in Helmand province. The UK defence secretary has warned of likely casualties within coalition troops during the offensive.<br/><br/>The British general in overall command of the operation, Maj Gen Nick Carter, said this offensive would be different from previous operations.