Mock Casualty Hungarian special operations forces prepare to load a simulated casualty into a medical evacuation helicopter during exercise Black Swan in Szolnok, Hungary, July 21, 2017. Army photo by Staff Sgt. Aaron Duncan SHARE IMAGE: Download Image: Full Size (2.67 MB) Tags: Special Forces, SOCEUR, sof, Black Swan 17, Soldiers, Army Photo By: Staff Sgt. Aaron Duncan VIRIN: 170717-A-DL944-008.JPG Photo Gallery