Northern Strike Air National Guard pararescue specialists conduct multi-component training during Exercise Northern Strike at the Alpena Combat Readiness Training Center, Mich., July 21, 2020. SHARE IMAGE: Download Image: Full Size (0.87 MB) Tags: Guard, Air Force, Northern Strike Photo By: Air Force Master Sgt. David Kujawa VIRIN: 200721-Z-EZ686-0131.JPG Photo Gallery