U.S. Marine Corps Lance Cpl. Stephen Meharg (left)

U.S. Marine Corps Lance Cpl. Stephen Meharg (left) and Lance Cpl. Brett Gibson, both engineers attached to Company I, Battalion Landing Team 3/8, Regimental Combat Team 8, measure lumber to make improvements to a vehicle checkpoint near their patrol base in Helmand province's Green Zone, west of the Nahr-e Saraj canal, April 9. Elements of 26th Marine Expeditionary Unit deployed to Afghanistan to provide regional security in Helmand province in support of the International Security Assistance Force.