Gen. David H. Petraeus, commander of NATO and International Security Assistance Force troops in Afghanistan, visits Regional Command Southwest during a battle field circulation, April 18. ISAF, in support of the Government of the Islamic Republic of Afghanistan, conducts operations in Afghanistan to reduce the capability and will of the insurgency, support the growth in capacity and capability of the Afghan National Security Forces, and facilitate improvements in governance and socio-economic development, in order to provide a secure environment for sustainable stability that is observable to the population. (Photo by U.S. Navy Chief Petty Officer Joshua Treadwell) (Released)