U.S. Air Force Col. Rudy Cachuela, left, Pacific Air Forces command surgeon, provides opening remarks, as Royal Australian Air Force (RAAF) WGCDR Joleen Darby, Australian Exchange Senior Flight Surgeon, PACAF/SG looks on, during an Aerospace Medicine virtual knowledge exchange with medical experts from the Royal Australian Air Force and Royal Thai Air Force, at Joint Base Pearl Harbor-Hickam, Hawaii, Nov. 23, 2020. The exchange focused on highlighting current best practices in aviation medicine and patient movement to enhance aircrew safety and patient care. (U.S. Air Force photo by Tech. Sgt. Zach Vaughn)