A new sentry is on watch. 🐺 afglobalstrike’s MH-139A Grey Wolf is now officially on duty. With more speed, range and lift, it brings a generational leap in capability to the mission of protecting our nation's most critical assets. 📸by Airman 1st Class Teniya Caldwell & Airman 1st Class Jack Rodriguez Escamilla #GreyWolf #AFGSC #AirForce #Modernization #Deterrence #NationalSecurity #Helicopter