Training Exercise Army Sgt. Casey Taylor and Air Force Master Sgt. Roger Yurko investigate possible contamination during a training exercise at Stewart Air National Guard Base, N.Y., Nov. 14, 2019. SHARE IMAGE: Download Image: Full Size (0.25 MB) Photo By: Air Force Master Sgt. Sara A. Pastorello, New York Air National Guard VIRIN: 191114-F-DJ197-976.JPG Photo Gallery