A volunteer group of Air Force and Navy engineers, led by Sarah Rebeca Vieira de Azevedo Ribeiro (middle, facing forward), work to prevent a mudslide threatening a home in an impoverished part of Lima, Peru. Sarah is the fiancée of Maj. Paul Morris, a former international exchange officer who represented the U.S. Air Force as an embedded flight officer with the Peruvian air forces. (Courtesy photo/Maj. Paul Morris)