Marine get the chance to feed horses after finishing up their volunteer work with the Pegasus Rising Project at Valenti Ranch, Rancho Santa Fe, Calif. Sept 28. The Pegasus Rising Project helps service members who have been diagnosed with post-traumatic stress disorder with therapeutic interactions with a family of Polish Arabian horses. - Marine get the chance to feed horses after finishing up their volunteer work with the Pegasus Rising Project at Valenti Ranch, Rancho Santa Fe, Calif. Sept 28. The Pegasus Rising Project helps service members who have been diagnosed with post-traumatic stress disorder with therapeutic interactions with a family of Polish Arabian horses.