Vigilant Flight An HH-60M Black Hawk helicopter hoists a simulated casualty during exercise Vigilant Guard 2016 at Camp Ethan Allen Training Site, Jericho, Vt., July 29, 2016. The exercise is a national emergency response exercise sponsored by the National Guard and U.S. Northern Command. SHARE: Download: Full Size (1.33 MB) Tags: Northcom, Northern Command Credit: Army Spc. Avery Cunningham, National Guard VIRIN: 160730-Z-QI027-0274R.JPG Photo Gallery