Koko's Break Navy Petty Officer 2nd Class Victor Green and his dog, Koko, a military working dog, take a break after a improvised explosive devices detection training at Camp Lemonnier, Djibouti, June 9, 2017. Green is a military working dog handler assigned to Combined Joint Task Force-Horn of Africa. Air Force photo by Staff Sgt. Lindsay Cryer SHARE: Download: Full Size (1.8 MB) Credit: Staff Sgt. Lindsay Cryer VIRIN: 170609-F-JE861-020A.JPG Photo Gallery