U.S. Army soldiers fire a 60 mm mortar round during Cobra Gold on Pulon Range, Thailand, Feb. 11, 2011. Cobra Gold is a joint forces, multinational exercise designed to ensure regional peace and stability. U.S. Army soldiers fire a 60 mm mortar round during Cobra Gold on Pulon Range, Thailand, Feb. 11, 2011. Cobra Gold is a joint forces, multinational exercise designed to ensure regional peace and stability. SHARE: Download: Full Size (0.75 MB) Tags: Photo Essays Credit: VIRIN: 000307-D-PAX24-709.jpg Photo Gallery