Airman 1st Class Corby Ramsey, medical technician with Malcolm Grow Medical Clinic offers ear protection to William Johnson and his son, Allister, during the Joint Service Open House on Joint Base Andrews. Walking medics are prepared to provide emergency care at the JSOH. This year's Joint Service Open House celebrates the Centennial of Marine Corps Aviation. JSOH affords the public an opportunity to meet the men and women of the Armed Forces while viewing over 100 static displays and 19 aerial demonstration teams.(Air Force Photo/Melanie Moore)