U.S. marines launched today a military offensive to retake the Helmand River Valley in south-western Afghanistan from Taliban militants.
The U.S. military says this operation is the largest since its invasion of Fallujah, Iraq, in 2004. The focus of the offensive will be bolstering local Afghan governments and protecting civilians. Pakistan says it deployed troops to a stretch of its border to prevent insurgents from fleeing across.
Reuters provides a Q&A on the new military offensive.