Marine Crosses Into the Blue Published April 12, 2019 By Airman 1st Class Genesis Tejada 35th Fighter Wing Public Affairs MISAWA AIR BASE, Japan -- During this year of the defender, we're highlighting Team Misawa's very own 35th Security Forces Commander, Maj. Devin L. Sproston, who was also a prior Marine. He walks us through his experience as a U.S. Marine Corps member and the turning point that motivated him to become an Airman.