The U.S. Navy's ICEX, or Ice Exercise, is a biennial exercise conducted above the Arctic Circle in cooperation with other branches of the military, government agencies, allied partners, private organizations, and academic institutions. ICEX provides submarines the opportunity to train in an operationally demanding and challenging environment, as well as an opportunity for scientific studies on ice thickness and the environment. (U.S. Navy video/released).進入香討影片區
