U.S. Navy Hospital Corpsman 1st Class Van Manlambus sprays insecticide around a hut May 6, 2011, in Espiritu Santo, Vanuatu, to control the mosquito population and prevent the spread of malaria. The effort was part of Pacific Partnership 2011, an annual deployment of forces designed to strengthen maritime and humanitarian partnerships during disaster relief operations, while providing humanitarian, medical, dental and engineering assistance to nations of the Pacific.