CARIBBEAN SEA -- A 1-228th Aviation Regiment CH-47F Chinook helicopter lands aboard amphibious assault ship USS Iwo Jima off the coast of Bluefields, Nicaragua, Sept. 20 in support of Operation Continuing Promise. U.S. servicemembers and civilians were deployed in support of Continuing Promise, providing humanitarian assistance, disaster relief and subject-matter exchanges to the Caribbean and Central and South America. (U.S. Marine Corps photo/Sgt. Samuel R. Beyers)