CAMP PENDLETON, Calif. -- Marines from Camp Pendleton’s Single Marine Program visit residents of the Rancho Vista Retirement Home, April 12, 2016. SMP is a program designed to enhance the quality of life of single Marines and Sailors by providing the opportunities for recreation, community involvement and social functions. (Marine Photo by Lance Cpl. Emmanuel Necoechea/Released) - CAMP PENDLETON, Calif. -- Marines from Camp Pendleton’s Single Marine Program visit residents of the Rancho Vista Retirement Home, April 12, 2016. SMP is a program designed to enhance the quality of life of single Marines and Sailors by providing the opportunities for recreation, community involvement and social functions. (Marine Photo by Lance Cpl. Emmanuel Necoechea/Released)