U.S. Navy sailors and Marines watch as an Indonesian marine breaks four bricks of ice with his head during a Pencak Silat martial arts show following an amphibious assault exercise for Cooperation Afloat Readiness and Training in Jangkar, Indonesia, June 5, 2012 2012. CARAT 2012 is a bilateral exercise that involves troops from the United States, Bangladesh, Brunei, Cambodia, Indonesia, Malaysia, the Philippines, Singapore, Thailand, and Timor Leste .