Purple Dog A Ghost robotic dog conducts reconnaissance during a human machine integration demonstration as part of Project Convergence Capstone 4 at Fort Irwin, Calif., March 16, 2024. SHARE IMAGE: Download Image: Full Size (1.63 MB) Tags: training, exercises, partnerships, Project Convergence, Capstone 4 Photo By: Army Spc. Samarion Hicks VIRIN: 240316-A-JU985-1023.JPG Photo Gallery