Staying Focused Marine Corps Lance Cpl. Shaun Chamberlin prepares to clear a room during military operations in urbanized terrain training at Andersen Air Force Base, Guam, Aug. 30, 2017. Chamberlin is a team leader assigned to India Company, Battalion Landing Team, 3rd Battalion, 5th Marines. Marine Corps photo by Cpl. Amaia Unanue SHARE: Download: Full Size (0.34 MB) Tags: Marines, Pacific Command, training, Marine Corps Credit: Cpl. Amaia Unanue VIRIN: 170830-M-GE751-141A.JPG Photo Gallery