Airman Marquis Cuffee, an aviation boatswain's mate from Portsmouth, Va., performs a maintenance check to a P-25 mobile firefighting vehicle before flight operations aboard the multipurpose amphibious assault ship USS Iwo Jima. Iwo Jima is en route to Central and South America and the Caribbean on a humanitarian civic assistance mission. The medical and engineering staff embarked aboard Iwo Jima will work with partner nations to provide medical, dental, veterinary and engineering assistance to several different nations to improve mutual understanding.