Grip and Grin A Marine Corps military working dog and handler participate in a demonstration of the K-9 unit at Marine Corps Air Station Yuma, Ariz., March 13, 2018. Marine Corps photo by Lance Cpl. Sabrina Candiaflores SHARE IMAGE: Download Image: Full Size (3.38 MB) Photo By: Lance Cpl. Sabrina Candiaflores VIRIN: 180313-M-SP532-1139C.JPG Photo Gallery