As a test of mental and physical strength, Staff Sgt. John Galvan, 46th Aviation Support Battalion Hydraulic Maintenance Supervisor, delicately places a brass nut atop another, after completing multiple physical exercises on a training lane for Bellator Stakes, March 27. It is the second year for the week-long training exercise that pushed the physical and mental skills of the aviation support unit through situational training scenarios, improvised explosive device convoy lanes and resiliency challenges.