Marine Silhouette Marine Corps Sgt. Jenna L. Cauble poses for a photo with Ken, a military working dog, at Marine Corps Air Station Yuma, Ariz., Jan. 18, 2019. SHARE IMAGE: Download Image: Full Size (0.77 MB) Tags: Marine Corps, Military Working Dog Photo By: Marine Corps Sgt. Allison Lotz VIRIN: 190118-M-MJ974-0128.JPG Photo Gallery