180325-N-IA905-1107 INDIAN OCEAN (March 25, 2018) Cmdr. Allen Maxwell Jr., left, commanding officer of the Arleigh Burke-class guided-missile destroyer USS Preble (DDG 88), shows Cmdr. Sarvesh C. Sharma, center, and Cmdr. A. K. Singh, right, executive officer of the Indian navy Talwar-class frigate INS Tarkash (F50), the computer assisted dead reckoning monitor aboard Preble. Preble is underway with the Theodore Roosevelt Carrier Strike Group for a scheduled deployment in the U.S. 7th Fleet area of operations in support of maritime security operations and theater security cooperation efforts. (U.S. Navy photo by Mass Communication Specialist 3rd Class Morgan K. Nall/Released)