As part of Marine Corps Air Station Yuma's day-long "Intro to Devil Dogs 101" event for local elementary schools, Marine volunteers from around base coordinated a mini combat fitness test for the kids to run through at Ramada Field, May 9. “Working with the kids is great, they’re a lot of fun,” said Lance Cpl. Eli Alvarado, a Headquarters and Headquarters Squadron search and rescue airframe mechanic and a native of Baldwin, NY. “One of them asked if the grenade would really explode.”