Chief Petty Officer Scott Stevens, from Swainville, Maine, salutes the side boys as he is piped in during the chief petty officer pinning ceremony aboard the multipurpose amphibious assault ship USS Iwo Jima. Iwo Jima is off the coast of Nicaragua in support of Continuing Promise 2010, a humanitarian civic assistance mission. The assigned medical and engineering staff embarked aboard is working with partner nations to provide medical, dental, veterinary, engineering assistance to improve mutual understanding of medical issues and technology.