A squad of U.S. Marines with Company I, Battalion Landing Team 3/8, Regimental Combat Team 8, pauses in their patrol as smoke rises from an insurgent position bombed by International Security Assistance Forces with Joint Direct Air Munitions as a second JDAM explodes during a firefight near Company I's patrol base in Helmand province's Green Zone, west of the Nar-e Saraj canal, Afghanistan, March 23, 2011. Elements of 26th Marine Expeditionary Unit deployed to Afghanistan to provide regional security in Helmand province in support of the International Security Assistance Force.