Marines with 26th Marine Expeditionary Unit load simulated food and medical supplies onto a CH-53E Super Stallion Helicopter during a simulated humanitarian assistance mission as part of Composite Training Unit Exercise in Mayport, Fla., July 17, 2010. The 26th MEU and Amphibious Squadron 4 conducted the three-week COMPTUEX in preparation for their deployment this fall. During COMPTUEX, 26th MEU will prepare for its Certification Exercise in August by integrating and finalizing communications and mission procedures.