Stinger Check Army Sgt. Zane Pettibone and Spc. Svenson Albert conduct checks with the Stinger Man-Portable Air Defense System during exercise Shabla 19 in Bulgaria, June 11, 2019. Troops improve readiness and interoperability between U.S. and Bulgarian troops during the exercise. SHARE IMAGE: Download Image: Full Size (1.85 MB) Tags: Army, Training Photo By: Army Sgt. Thomas Mort VIRIN: 190611-A-YQ762-0091C.JPG Photo Gallery