Illumination Rounds Marines shoot illumination rounds from an M224 60mm mortar system off the flight deck of the amphibious dock landing ship USS Whidbey Island in the Red Sea, Nov. 21, 2016. Marine Corps photo by Cpl. Chris Garcia SHARE IMAGE: Download Image: Full Size (0.52 MB) Photo By: Cpl. Chris Garcia VIRIN: 161121-M-PJ210-001A.JPG Photo Gallery