Petty Officer 1st Class Raul Madrigal, left, instructs Police Constable Henry Sharm-Mion, from the St. Lucia Marine Police Unit, and Seaman Julio Charles, from the Antigua and Barbuda Defence Force Coast Guard, on the correct assembly of a M19 grenade machine gun during the patrol craft weapons maintenance course at the Naval Small Craft Instruction and Technical Training School. The mission of NAVSCIATTS is to provide partner nation security forces with the highest level of riverine and littoral craft operations and maintenance technical training.