Blocking Call Navy veteran Brett Parks, left, and Army veteran Nicholas Titman attempt to block a shot in a sitting volleyball game against Denmark at the 2016 Invictus Games in Orlando, Fla., May 11, 2016. DoD photo by Roger Wollenberg SHARE IMAGE: Download Image: Full Size (0.81 MB) Photo By: Roger Wollenberg VIRIN: 160511-D-BB251-013C.JPG Photo Gallery