150720-N-HI414-004 SINGAPORE (July 20, 2015) U.S. and Republic of Singapore Armed Forces conduct an expeditionary standards and operational challenges exchange during Cooperation Afloat Readiness and Training (CARAT) Singapore 2015. In its 21st year, CARAT is an annual, bilateral exercise series with the U.S. Navy, U.S. Marine Corps and the armed forces of nine partner nations. (U.S. Navy photo by Mass Communication Specialist 2nd Class Gregory A. Harden II/Released)