Fighting occurs as U.S. readies military offensive in Helmand province . The push will follow other big operations in Helmand -- Cobra 's Anger in December and Khanjar last summer . Afghan forces have been fighting Taliban for more than a year and are now engaged in the biggest battle of their war against insurgents. U.S. troops coming from 30,000 added by President Obama .
Fighting occurs as U.S. readies military offensive in Helmand province . Afghan forces have been fighting Taliban for more than a year and are now engaged in the biggest battle of their war against insurgents. U.S. troops coming from 30,000 added by President Obama .