190801-N-RM689-1078 GRESIK DISTRICT, Indonesia (Aug. 1, 2019) Sailors assigned to Naval Mobile Construction Battalion (NMCB) 4, and members of the Indonesian National Armed Forces transfer books back to the library at the SDN Duduk Sampeyan Elementary School project site during Cooperation Afloat Readiness and Training (CARAT) Indonesia 2019. CARAT, the U.S. Navy's longest running regional exercise in South and Southeast Asia, strengthens partnerships between regional navies and enhances maritime security cooperation throughout the Indo-Pacific. (U.S. Navy photo by Mass Communication Specialist 2nd Class Kelsey L. Adams)